Additive Squares

Alphabet {0, 1, 2, 3, 5}

size 5 · diameter 5 · record length 144 · JSON

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

Record word (length 144, by David Renshaw, 2026-08-18)

Display: drawn for the equivalent alphabet translated by -2 (drift removed).

3 0 5 0 3 1 5 0 1 5 1 3 1 2 3 2 0 3 0 1 5 0 1 0 2 0 1 0 5 1 0 3 1 0 5 2 0 1 5 3 1 5 1 0 5 3 0 5 2 5 3 1 0 5 2 5 3 5 1 5 3 5 2 5 3 5 1 5 0 2 5 3 0 5 2 0 1 3 1 5 2 0 1 5 3 0 5 3 5 2 5 0 2 1 5 0 1 3 5 3 0 2 3 0 1 0 2 5 1 0 2 1 0 1 3 1 0 2 1 0 1 5 1 3 0 1 5 2 0 5 1 3 5 1 5 2 1 3 2 1 5 1 2 0

History

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