Additive Squares

Word of length 60 over {0, 2, 11, 13}

by Aayush Rajasekaran, 2026-08-20 · the current record for this alphabet · JSON

0102030405060-200 position in word → partial sum

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

0 13 2 0 11 13 11 2 13 2 0 2 13 11 13 2 13 11 0 11 2 0 2 13 2 0 11 0 2 0 11 13 11 0 11 13 2 13 11 13 0 11 0 2 13 2 0 2 13 11 13 2 13 0 2 0 11 13 2 11

Alphabet {0, 2, 11, 13}

size 4 · diameter 13 · record length 60 · 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.

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