Additive Squares

Word of length 5040 over {0, 1, 2, 9, 17, 18}

by David Renshaw, 2026-10-05 · the current record for this alphabet · JSON

Display: drawn for the equivalent alphabet translated by -7 (drift removed); downsampled ×5.

1 17 18 9 18 0 18 2 9 2 18 1 9 18 17 18 1 0 9 2 0 1 2 18 2 1 2 18 17 0 17 1 0 2 17 0 1 17 9 18 9 17 2 0 1 18 2 9 0 17 9 18 17 18 2 18 9 1 0 18 2 1 2 18 2 1 9 0 1 0 2 18 2 0 17 9 18 17 2 9 1 2 0 2 1 9 1 2 18 1 9 0 17 0 1 0 9 2 18 0 2 9 1 9 17 18 0 1 9 1 2 1 9 18 1 18 0 9 18 1 2 0 18 17 18 2 17 9 2 17 2 0 9 0 18 9 17 18 17 1 18 9 18 17 18 2 18 9 1 9 2 18 17 1 0 1 18 2 18 17 0 18 1 18 9 0 1 2 1 9 17 2 0 1 18 2 18 17 9 17 1 17 0 1 2 18 1 17 9 1 0 9 0 17 0 9 1 18 17 18 1 18 17 9 1 18 0 17 18 1 2 18 2 0 2 1 0 2 9 18 2 1 0 1 18 9 17 2 18 17 18 0 18 2 0 9 18 2 9 18 1 0 9 2 1 17 0 9 0 18 9 1 18 17 18 1 2 0 1 17 2 0 1 0 2 0 9 18 9 1 0 1 2 1 17 9 2 18 1 0 2 1 2 17 2 9 2 1 18 17 9 0 18 17 2 1 0 17 0 9 2 18 2 9 0 2 18 0 18 17 9 18 0 18 17 18 2 17 9 18 9 0 1 0 9 2 18 2 1 18 2 9 18 1 0 1 2 9 1 18 0 17 0 9 18 0 1 9 1 17 18 9 2 18 17 1 9 0 2 18 9 2 0 1 0 17 1 0 9 1 18 2 9 0 2 17 9 18 1 18 17 0 1 0 9 17 0 2 17 18 0 18 1 2 18 17 9 1 17 0 2 1 17 9 2 1 0 9 0 17 2 0 1 0 9 2 0 2 1 2 9 2 0 9 0 1 2 1 0 18 9 2 17 0 18 9 0 2 1 18 17 1 2 18 9 0 2 0 1 17 18 17 0 1 17 0 2 18 0 18 9 18 1 9 2 18 0 9 18 17 0 17 2 0 2 1 9 17 1 9 2 1 2 18 2 9 2 1 17 18 9 17 1 0 9 2 18 2 0 2 18 2 1 0 1 17 0 1 2 9 18 0 18 2 9 17 2 9 0 1 17 18 9 18 0 18 17 9 2 1 9 0 2 0 9 0 1 18 9 1 0 17 9 17 0 2 9 2 17 18 17 1 17 9 2 0 1 9 2 18 9 1 0 18 17 18 2 18 0 18 2 18 9 17 18 0 2 18 17 1 0 2 1 17 0 9 17 18 2 0 17 18 17 9 17 18 1 2 0 18 2 1 9 2 18 2 1 2 0 18 9 17 1 0 9 0 2 18 0 9 1 17 18 9 2 18 1 9 1 0 18 0 2 0 1 0 18 17 0 1 9 18 1 17 18 2 1 0 17 2 18 0 17 9 0 1 2 0 9 2 18 2 1 17 18 1 0 2 18 1 17 18 17 2 0 9 18 9 17 0 18 17 0 2 9 17 9 1 9 18 17 18 1 18 9 17 1 9 18 2 1 9 2 0 17 2 17 18 17 0 18 17 9 17 18 17 0 2 0 17 0 18 2 1 0 9 18 2 0 18 9 18 17 9 17 0 9 18 17 18 2 17 0 18 9 17 1 2 0 9 17 0 17 18 1 0 9 0 2 0 1 0 9 17 1 0 17 18 2 1 0 2 17 2 1 0 18 17 18 2 18 1 2 0 2 1 2 18 2 17 0 1 9 2 9 1 9 18 0 17 18 17 9 2 17 9 18 9 0 18 0 17 9 2 1 18 17 1 2 17 2 0 2 1 0 1 17 2 18 0 1 18 17 18 0 17 9 0 1 9 2 1 17 0 9 17 18 1 2 18 0 18 17 9 17 1 18 9 1 17 9 1 9 0 2 0 1 0 17 9 1 9 2 1 2 17 0 17 18 2 1 0 2 1 18 2 9 0 17 9 17 18 0 9 0 17 2 18 0 17 18 1 17 0 17 9 2 18 2 0 18 9 0 2 17 9 2 17 18 2 1 18 17 0 2 17 9 18 17 0 18 0 1 9 0 2 1 0 18 0 9 1 18 9 2 18 9 0 18 9 2 18 9 17 0 1 0 18 17 0 1 9 18 17 0 2 17 1 9 0 2 0 1 18 0 9 17 0 1 2 9 0 17 9 0 1 0 9 17 0 18 9 18 17 1 2 18 17 0 18 1 9 0 2 18 0 1 18 17 1 2 18 9 0 18 9 17 0 17 1 0 9 18 1 0 1 9 2 1 18 2 1 17 9 1 0 17 18 0 2 9 2 18 0 1 9 0 2 0 1 2 1 18 1 0 17 1 17 9 0 9 1 18 2 1 0 2 9 2 1 18 17 0 18 0 9 18 17 0 2 9 0 2 0 1 2 18 17 9 0 18 17 0 18 0 1 9 1 17 18 2 17 0 17 9 18 9 2 17 18 0 2 9 18 17 2 0 1 18 2 9 2 0 9 18 0 1 2 9 17 2 17 0 2 18 2 0 9 18 1 2 18 9 2 9 1 17 18 1 2 18 0 9 1 17 2 0 1 17 9 1 0 17 1 2 0 1 2 9 17 0 9 1 2 18 0 18 9 17 18 0 1 0 9 17 9 2 0 9 18 0 9 0 17 0 9 2 0 17 0 9 17 9 2 17 0 1 0 2 17 0 2 18 17 18 0 1 9 1 2 17 1 0 1 17 1 2 1 17 0 2 0 1 0 2 0 9 17 0 1 2 0 18 1 0 17 18 9 1 18 0 2 1 0 17 0 2 17 9 0 17 1 0 17 18 17 2 1 17 2 9 2 1 0 18 2 1 0 17 2 17 9 0 17 18 0 2 17 0 2 1 18 17 0 1 0 9 17 9 0 2 1 2 9 2 0 9 1 0 9 17 1 2 1 0 17 0 9 0 1 17 9 1 0 9 2 1 0 1 17 9 2 0 1 18 17 1 9 1 0 9 1 2 0 1 2 18 2 0 9 1 0 18 2 17 1 0 2 0 9 1 0 2 17 9 18 0 17 18 1 0 2 9 17 2 0 18 2 9 18 1 18 17 0 18 17 2 1 9 2 17 1 17 0 17 2 0 1 0 17 0 9 0 1 2 17 9 18 17 1 2 17 2 0 1 2 17 9 0 1 17 0 2 18 0 2 9 18 2 17 18 2 18 9 0 2 9 1 0 18 2 9 0 1 17 2 17 0 17 9 18 9 1 0 1 18 0 2 18 17 0 1 2 18 17 1 2 18 2 17 18 2 0 18 17 18 9 1 2 0 18 2 9 0 2 9 2 17 9 0 9 18 2 18 17 1 18 17 0 9 0 1 17 2 18 17 2 1 17 2 18 2 9 2 1 2 0 1 9 17 0 17 9 18 2 0 9 18 0 17 18 17 9 18 17 18 1 18 9 17 18 2 1 9 17 18 9 17 0 17 1 0 2 9 17 2 18 2 0 18 2 9 2 1 9 2 0 17 18 2 17 0 1 17 2 0 9 2 18 17 9 18 0 2 0 18 1 9 1 17 18 2 1 9 1 17 18 17 0 9 17 0 1 9 0 17 18 17 2 9 0 2 1 18 0 18 9 0 2 18 17 1 18 9 17 0 9 17 2 9 17 1 17 9 0 2 1 18 2 18 0 18 9 1 2 18 1 9 1 0 17 2 9 0 2 18 1 2 9 2 1 17 9 0 1 0 17 18 1 0 9 2 0 1 18 1 2 9 1 0 9 18 0 17 18 1 9 18 2 9 1 18 1 9 17 18 0 17 0 1 9 17 1 18 9 18 2 9 1 0 17 0 9 17 0 2 9 2 18 17 2 1 9 18 0 17 9 2 17 18 9 18 2 0 2 9 2 18 1 9 17 2 1 2 0 1 17 1 9 0 17 1 2 9 17 1 18 1 2 0 1 9 2 18 9 1 18 17 18 0 17 0 1 2 18 2 9 18 17 2 18 9 0 18 1 18 2 18 1 17 18 17 0 18 0 1 9 0 18 2 1 0 9 1 0 1 18 17 9 17 0 17 18 2 18 9 18 2 1 9 1 2 1 17 9 18 2 18 9 0 17 0 9 18 0 17 2 1 9 1 2 17 18 17 1 18 9 18 1 2 18 17 18 9 1 9 2 18 1 9 0 2 17 18 17 1 18 17 0 2 9 2 18 9 2 17 2 18 2 0 18 2 18 17 2 9 17 1 17 18 17 9 2 9 1 17 9 2 18 17 0 18 2 18 17 2 9 18 2 1 17 2 0 2 17 9 2 0 2 9 1 9 17 0 9 17 18 9 2 18 9 17 18 1 17 9 17 18 17 0 18 2 1 9 2 18 1 18 17 9 2 1 17 9 0 2 9 1 18 17 18 0 2 18 1 17 9 0 1 0 9 2 17 9 0 18 9 17 0 2 1 18 2 18 17 2 17 1 17 0 1 18 9 17 1 2 9 18 9 2 1 2 9 2 0 9 1 17 9 2 1 0 18 2 1 2 18 9 17 1 17 9 0 17 2 9 17 1 2 18 17 0 2 18 9 17 1 9 0 17 0 1 2 9 17 18 1 0 9 17 18 0 9 2 18 9 18 17 9 2 0 2 18 9 2 1 17 0 1 0 2 1 18 2 18 17 9 0 17 9 2 0 1 2 18 9 17 1 18 9 2 9 18 9 17 18 0 9 18 1 0 17 1 9 0 2 0 17 0 1 2 18 17 0 17 2 0 17 1 2 9 0 1 2 1 0 18 1 2 18 1 17 0 2 0 17 0 18 9 17 2 17 0 2 9 1 17 9 17 2 17 18 0 2 18 2 1 2 9 0 1 9 0 18 2 0 2 1 9 17 9 18 2 17 18 9 0 17 2 9 17 18 17 1 18 2 9 18 17 18 9 18 17 1 9 1 18 9 0 18 0 2 9 18 0 17 18 2 17 9 18 2 18 9 0 9 17 18 2 0 9 2 0 18 0 2 1 17 18 17 0 9 2 17 9 0 9 2 18 2 17 0 18 17 18 9 17 18 0 9 1 18 9 0 18 9 17 9 18 2 9 2 0 17 2 18 17 1 0 1 9 0 9 2 1 0 17 0 9 1 2 0 18 2 0 17 9 18 0 2 0 17 18 2 17 1 0 2 1 2 17 18 0 9 0 17 2 0 2 1 17 18 2 18 17 18 1 17 18 2 9 17 0 18 17 2 9 17 18 2 17 1 2 0 9 0 17 0 2 9 17 18 1 17 1 0 2 1 18 0 18 9 18 2 9 0 18 2 0 1 0 2 0 9 17 0 17 1 9 17 18 9 17 2 0 1 9 2 9 18 0 1 9 2 0 18 17 9 17 18 17 0 2 18 2 1 18 9 1 9 2 0 1 2 9 2 0 18 17 2 17 1 2 0 17 0 1 0 2 0 9 2 1 0 17 1 2 18 1 0 18 2 9 0 17 18 0 2 18 1 2 18 0 17 0 1 2 17 2 0 2 1 0 1 9 2 0 2 18 2 9 2 0 2 18 17 2 9 0 18 9 2 9 0 2 1 0 9 18 1 0 17 0 18 2 17 2 0 2 18 17 18 0 18 9 18 17 0 17 18 17 2 9 17 18 0 2 18 2 9 1 2 0 18 2 9 2 18 2 17 9 0 17 18 9 17 18 1 18 2 1 0 18 0 1 9 17 9 0 9 2 0 1 9 0 17 0 9 18 2 1 17 0 1 17 18 17 1 0 9 17 0 2 18 9 2 0 2 17 2 0 2 18 17 1 18 17 9 0 1 2 18 17 9 2 9 0 2 1 18 17 9 18 2 18 1 9 2 17 1 0 2 0 1 0 18 0 17 18 2 9 0 1 0 9 2 9 17 0 17 1 17 9 2 9 1 2 1 17 18 17 2 0 2 17 1 9 17 1 2 18 2 1 17 0 1 9 0 1 17 2 18 2 9 0 1 2 0 2 17 1 2 9 2 17 1 2 1 9 2 9 18 2 18 1 2 0 1 2 9 18 9 0 18 17 18 9 0 1 2 18 2 1 0 2 9 17 1 2 0 2 9 1 2 9 0 9 1 0 9 18 0 17 0 9 0 1 18 0 9 0 1 2 17 0 2 9 1 2 17 0 2 1 0 2 0 9 1 9 18 0 2 0 9 2 17 18 0 17 0 1 2 9 1 9 18 2 9 1 2 1 0 2 1 9 2 17 9 1 0 1 17 2 1 0 9 18 2 9 0 9 17 2 17 0 1 0 9 1 17 0 2 1 0 17 1 18 17 18 9 0 2 18 1 18 0 1 9 17 2 17 9 0 18 17 0 17 9 2 9 0 18 9 17 18 0 2 18 9 2 18 17 18 2 0 18 2 1 0 18 2 9 18 0 9 18 9 1 0 2 1 17 18 2 1 18 1 17 1 0 1 2 17 2 0 2 18 1 17 9 17 0 9 1 0 9 18 2 0 2 1 0 2 9 1 0 18 9 2 18 9 17 1 0 2 0 9 17 0 2 17 1 0 17 0 9 17 18 0 18 9 1 18 17 1 2 9 0 9 18 0 2 1 2 0 9 2 1 18 1 9 18 0 18 1 9 18 2 0 2 18 9 2 1 17 18 17 1 9 18 17 1 17 18 2 17 1 0 17 2 0 18 9 0 9 2 9 1 2 0 1 9 2 1 0 17 0 1 0 2 1 17 2 1 2 0 1 17 1 9 1 2 18 17 1 17 0 2 1 9 1 0 2 1 2 17 1 2 1 0 1 2 9 0 17 0 1 2 0 2 9 2 1 9 18 1 17 18 2 18 9 2 17 2 0 17 18 0 2 1 18 0 2 9 18 0 1 2 1 0 9 0 2 0 18 9 0 1 9 0 9 18 9 0 2 18 0 9 1 0 2 1 18 0 2 9 1 2 0 2 1 2 0 17 1 2 0 1 0 9 0 2 0 9 18 1 2 18 1 9 18 2 17 0 9 0 18 0 2 0 1 18 2 1 9 0 2 1 17 0 1 2 0 18 2 18 1 2 0 17 1 17 9 2 1 2 0 1 0 17 0 1 18 9 17 0 18 0 2 17 0 18 0 9 0 1 17 2 0 2 1 2 9 2 17 1 17 9 2 17 0 1 2 0 17 18 1 17 1 0 17 0 18 9 18 17 1 18 1 0 9 2 1 17 1 9 0 9 2 0 9 17 18 2 18 17 1 2 18 17 2 0 2 1 18 0 9 17 18 1 18 0 2 1 2 0 17 0 2 1 9 2 1 0 2 18 2 0 1 2 9 2 18 17 2 1 17 9 1 0 2 0 18 2 1 18 9 1 2 9 1 0 18 1 2 0 1 9 2 0 17 18 0 9 2 1 0 9 18 1 0 17 9 17 2 18 17 2 17 1 2 0 9 2 18 9 17 18 0 1 18 9 18 1 2 18 1 0 9 2 17 0 2 18 2 1 18 17 18 2 9 2 0 9 2 1 0 18 0 1 0 18 2 1 17 18 1 0 1 17 18 17 9 2 17 2 1 17 0 2 1 9 18 1 0 18 17 9 0 2 9 18 17 0 1 17 0 17 9 1 18 1 9 0 1 2 0 18 2 1 2 0 1 9 2 9 17 1 9 1 18 2 0 2 1 2 18 2 17 0 2 0 9 2 0 2 1 0 2 0 17 1 18 1 0 2 17 1 9 2 0 18 0 1 0 9 17 1 0 2 0 17 2 18 9 18 2 17 1 0 17 2 17 0 9 1 2 17 2 9 18 2 1 0 2 1 2 9 0 17 1 9 0 1 2 9 18 17 2 0 17 9 0 2 1 17 9 2 17 1 2 0 1 0 18 17 2 17 18 9 17 2 0 2 18 17 0 18 2 1 0 9 2 0 1 2 18 9 1 2 1 17 0 17 9 17 18 9 1 0 17 9 17 2 17 18 2 0 1 2 9 2 18 1 17 1 2 1 18 9 17 18 0 9 0 2 0 17 2 0 2 9 2 1 17 18 1 18 0 1 0 2 1 0 18 0 9 17 1 2 0 17 9 0 2 18 17 9 17 0 17 2 17 18 2 0 2 1 0 2 17 1 2 9 2 18 2 0 1 0 17 0 9 18 0 2 0 1 9 2 0 18 2 1 2 18 17 18 1 9 0 18 9 17 18 17 1 2 9 0 18 9 1 9 2 1 0 9 17 1 0 2 18 0 1 18 9 18 0 17 18 9 0 9 17 0 2 9 1 17 18 2 17 0 17 18 9 18 1 9 18 0 1 0 18 17 2 18 2 1 18 17 0 2 1 2 9 0 2 1 2 0 18 9 1 18 17 9 17 2 18 9 0 1 2 17 1 0 2 0 17 18 1 9 1 2 18 0 2 0 17 18 1 17 9 0 9 17 2 0 9 17 18 17 1 17 2 0 1 18 1 17 9 1 18 2 0 18 9 2 17 18 17 1 2 17 18 0 17 9 0 17 18 1 17 18 17 0 2 17 1 9 0 1 17 2 18 9 0 1 18 17 0 18 9 1 0 17 18 17 0 9 18 0 17 0 18 1 18 0 9 18 0 18 17 9 17 18 0 17 9 18 1 18 17 18 1 2 9 0 17 9 18 17 2 9 1 17 2 0 1 9 18 0 9 18 17 9 0 1 9 17 18 17 2 0 9 18 17 18 9 18 1 9 0 17 9 1 2 9 0 2 9 2 18 1 17 1 9 17 1 18 17 18 9 18 1 9 0 1 17 18 2 0 9 17 18 1 0 1 2 18 2 9 2 1 18 0 18 2 17 9 0 2 0 1 18 0 2 1 0 2 17 0 18 2 1 0 2 9 0 1 2 1 0 17 0 2 0 1 2 0 9 1 9 18 0 9 17 18 0 2 1 0 17 1 9 0 17 0 18 17 0 1 18 0 1 9 2 17 1 2 0 1 2 18 17 1 9 0 17 9 2 18 17 0 18 1 18 17 0 17 9 0 2 0 1 9 2 18 17 9 1 17 0 9 1 2 9 17 0 2 9 1 0 9 2 17 0 9 17 9 18 0 2 1 0 17 0 1 2 9 0 17 1 2 1 0 2 1 9 2 18 9 1 17 1 2 17 1 9 0 17 1 9 2 9 0 1 2 1 9 1 0 18 0 1 9 0 2 1 9 17 1 17 0 2 0 17 9 1 2 1 0 18 17 9 2 17 2 18 0 2 1 2 0 18 0 9 0 2 18 2 9 1 2 18 2 0 18 9 1 0 17 18 0 9 18 1 2 18 0 2 17 9 0 2 9 0 1 9 0 2 18 17 9 2 9 0 17 0 18 2 9 0 18 9 17 9 2 1 17 18 9 18 2 18 1 18 2 9 1 0 9 1 9 2 1 17 2 17 0 1 0 9 17 0 18 9 18 17 9 1 2 0 1 2 18 1 9 0 2 18 17 1 0 17 18 1 18 9 17 18 9 0 17 18 1 18 9 2 0 17 0 2 0 17 9 2 1 17 0 1 18 17 18 0 9 18 1 18 17 0 18 17 18 2 1 0 2 18 9 17 2 0 9 1 18 9 1 0 17 9 18 17 18 2 17 1 0 9 2 9 17 9 1 2 18 0 2 0 1 2 9 2 0 2 17 1 2 18 2 1 2 9 1 17 9 0 17 9 17 2 1 0 9 1 0 18 2 1 17 1 9 0 9 1 9 0 17 18 0 2 0 17 0 2 9 0 18 9 18 17 2 9 1 18 1 9 0 9 1 9 0 2 18 2 9 1 2 17 18 2 1 18 0 9 18 0 2 0 17 0 9 0 18 2 0 1 0 17 18 2 17 9 17 18 17 1 18 2 9 17 18 2 1 17 2 0 17 18 0 9 0 17 18 0 1 9 2 18 2 9 17 9 18 0 9 2 18 9 1 2 1 0 2 1 9 17 2 18 2 1 18 0 1 2 18 1 0 17 9 1 9 0 2 0 9 0 1 17 1 0 9 0 1 2 9 2 0 9 2 1 0 18 17 9 18 17 0 18 0 2 9 2 0 2 18 0 17 18 0 1 0 17 9 0 17 0 18 1 0 1 2 0 9 18 2 0 2 9 0 9 18 2 9 0 1 17 18 1 9 17 1 18 17 18 2 0 18 0 9 1 0 18 9 0 9 17 0 17 1 2 1 9 2 1 2 0 9 0 18 9 1 9 18 2 1 0 18 1 9 0 18 2 0 2 1 2 0 18 0 2 0 1 0 17 18 0 2 1 17 0 9 1 9 0 9 17 18 0 18 17 2 0 1 0 17 0 9 17 9 1 0 9 1 2 9 0 2 17 0 1 17 9 17 1 2 9 18 2 1 0 18 9 0 2 0 9 0 2 1 2 9 17 0 2 1 0 2 18 2 1 2 9 2 0 1 0 17 1 2 0 1 2 9 1 18 9 0 17 0 2 18 17 0 9 1 0 17 18 0 2 17 18 2 1 18 9 0 9 1 2 9 0 2 18 0 2 1 0 9 2 9 0 9 17 2 18 2 9 2 1 9 1 0 1 9 2 1 2 18 0 18 17 18 9 2 0 9 0 18 9 18 17 18 0 9 1 0 18 0 1 2 9 1 2 18 0 18 2 9 17 1 0 2 18 17 9 0 2 0 9 0 2 1 0 1 18 1 0 9 18 17 0 18 9 0 9 2 9 1 18 9 18 17 2 18 0 1 18 2 1 2 9 0 9 18 17 18 0 9 0 2 17 2 18 17 18 9 17 2 9 0 1 18 17 18 2 9 1 18 2 0 9 17 0 2 1 0 9 2 0 9 17 0 17 1 9 18 1 9 1 2 0 2 1 2 0 17 1 9 0 1 2 18 2 1 2 0 2 17 18 2 0 2 17 9 0 1 17 2 0 2 9 2 17 9 17 1 2 18 2 1 17 2 18 17 18 1 0 17 1 18 2 0 1 0 17 18 1 17 9 18 1 2 1 17 1 18 9 18 0 1 0 2 1 9 0 1 2 18 9 0 2 1 0 17 2 9 17 0 9 17 1 0 2 0 1 9 17 0 1 0 2 0 9 2 1 0 1 2 1 18 2 0 9 2 0 17 18 17 1 2 18 2 9 0 9 18 2 1 2 9 2 1 18 9 1 0 2 0 9 1 0 17 0 9 18 17 2 1 2 9 17 18 2 0 17 18 17 1 18 9 1 17 2 17 0 18 0 9 0 18 2 1 0 17 0 2 0 1 17 2 1 9 18 2 17 1 2 9 18 0 9 1 0 2 0 17 9 2 0 1 0 9 2 17 0 17 1 0 9 0 17 0 18 0 17 0 2 17 2 1 2 9 2 17 2 9 0 17 18 17 0 9 0 2 1 2 18 1 17 18 1 2 0 17 1 9

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Alphabet {0, 1, 2, 9, 17, 18}

size 6 · diameter 18 · record length 5040 · JSON

open No exhaustive search has settled this alphabet; the record is a lower bound on the (possibly infinite) maximum.

Know the exact maximum? Log in to claim this alphabet closed.

Record history

• 5040 (was 192) — David Renshaw, 2026-10-05
• 192 (first) — Bryna Kra, 2026-08-26

Comments

• David Renshaw · 2026-10-05 14:48 UTC

  Found by beam search over prefixes scored by randomized DFS rollouts (from scratch, 4 min), then two rounds of iterated cut-and-re-extend local search on both ends (~14 min, 10 cores).

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