Additive Squares

Word of length 400 over {0, 1, 7, 11}

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

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

0 1 0 7 0 1 0 11 0 1 0 7 1 0 1 11 1 0 1 7 1 11 7 0 7 1 0 1 11 0 1 0 7 0 11 7 1 7 0 11 0 1 11 0 11 7 1 7 0 11 7 11 1 11 0 1 11 1 7 1 0 7 1 7 11 7 0 11 7 11 1 11 7 11 0 11 1 0 7 0 11 7 11 1 7 11 7 0 1 7 0 11 0 7 0 1 0 7 11 1 7 0 1 7 11 1 11 0 11 7 0 11 0 1 0 7 1 0 1 11 0 11 7 1 11 1 0 1 7 1 0 1 11 0 1 0 7 0 1 0 11 0 7 11 0 11 1 0 7 0 1 11 0 1 7 1 11 1 0 11 0 7 0 11 1 11 0 11 7 1 7 11 0 7 0 1 0 7 0 11 0 1 11 7 1 0 1 7 11 7 1 7 0 11 0 7 0 11 1 11 7 11 0 11 7 11 1 7 1 0 1 11 1 7 1 0 7 11 7 1 11 7 11 0 7 1 0 11 1 11 7 11 0 11 7 11 1 7 11 7 0 7 11 7 1 7 0 1 0 11 7 1 7 11 7 1 0 1 11 1 7 11 0 11 7 11 1 11 7 0 11 0 1 0 7 1 11 7 11 0 7 11 7 1 0 7 0 11 0 1 0 7 1 7 11 7 1 7 0 1 7 11 1 0 7 0 1 0 11 0 1 0 7 1 7 11 1 7 1 0 11 1 11 7 11 0 11 1 0 11 0 7 0 1 7 11 1 0 1 7 0 7 11 7 1 11 7 11 0 11 7 11 1 11 0 1 11 1 7 11 0 11 7 11 1 11 7 0 11 0 1 0 7 1 0 1 11 7 11 0 1 11 1 7 1 0 7 1 7 11 1 11 0 7 11 7 1 11 7 11

Alphabet {0, 1, 7, 11}

size 4 · diameter 11 · record length 400 · 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

• 400 (first) — Aayush Rajasekaran, 2026-08-20

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