Additive Squares

Word of length 259 over {0, 1, 2, 4, 7}

by David Renshaw, 2026-08-18 · JSON

This is a historical record from 2026-08-18, superseded on 2026-08-18 by length 317jump to the current record (461).

050100150200250-500 position in word → partial sum

Display: drawn for the equivalent alphabet translated by -3 (drift removed).

0 4 0 1 2 0 2 4 0 4 7 4 1 7 2 1 0 7 4 7 2 1 4 2 0 4 0 7 2 0 7 4 1 0 2 0 4 0 1 2 4 2 0 2 1 4 0 1 7 1 2 0 1 2 4 1 0 2 0 7 2 7 4 2 7 0 4 0 1 7 4 0 7 2 1 0 1 2 1 0 7 2 4 1 7 2 7 0 7 2 7 4 0 2 4 7 1 7 2 7 4 0 7 4 7 2 7 4 1 4 7 4 2 1 0 2 0 4 2 7 4 7 0 1 4 2 7 2 0 4 0 1 2 4 1 0 4 1 2 7 4 7 0 1 4 2 0 7 4 2 7 1 7 4 7 2 0 7 2 4 1 0 4 7 0 7 1 2 7 2 0 2 1 4 2 0 2 7 2 0 4 0 2 0 7 1 2 0 1 2 1 4 0 2 7 2 0 1 0 4 0 1 0 2 0 4 2 0 2 1 0 1 7 1 2 1 0 1 2 4 7 1 2 7 0 7 1 4 2 4 7 4 0 1 2 1 0 4 7 1 0 2 1 2 4 7 4 2 1 0 2 0 4 7 4 2 0 1 2

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Alphabet {0, 1, 2, 4, 7}

size 5 · diameter 7 · record length 461 · 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

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