Additive Squares

Word of length 377 over {0, 5, 7, 13}

by Aayush Rajasekaran, 2026-08-26 · the current record for this alphabet · JSON

Display: drawn for the equivalent alphabet translated by -6 (drift removed).

13 5 7 13 5 0 5 7 5 13 7 13 0 5 7 0 7 13 7 0 5 7 5 13 7 13 0 5 0 13 0 5 7 5 13 5 0 5 13 5 7 13 7 0 7 5 13 0 5 7 5 13 7 13 0 13 7 13 5 13 7 0 7 5 13 5 0 5 13 7 0 13 5 0 13 0 7 0 13 0 5 13 5 7 13 5 13 0 7 13 7 5 7 0 7 13 0 7 0 5 0 13 5 0 5 7 0 13 7 5 13 5 0 5 7 0 5 0 13 0 5 0 7 0 13 7 0 7 5 0 13 5 0 7 0 5 13 0 13 7 13 5 7 13 7 0 7 5 0 7 0 13 5 0 5 7 5 13 5 0 13 0 7 5 7 0 13 7 13 5 13 7 13 0 13 5 0 7 5 0 5 13 0 13 7 0 13 0 5 13 0 13 7 0 7 5 7 13 7 0 13 7 13 5 13 7 13 0 13 5 0 13 0 7 13 5 13 7 13 0 13 7 5 13 5 0 5 7 5 13 7 13 0 13 5 0 7 0 13 7 13 5 7 13 7 0 7 5 0 13 0 5 0 7 5 7 13 5 0 5 13 5 7 13 7 0 13 0 5 0 7 0 5 0 13 5 0 5 7 5 0 5 13 5 7 13 0 13 5 0 5 7 0 5 0 13 7 0 13 5 13 7 5 7 0 7 5 13 7 13 0 13 7 13 5 13 0 5 7 5 13 7 13 0 13 5 0 5 7 0 5 13 0 13 7 0 13 0 5 0 7 0 5 0 13 5 0 5 7 5 13 7 0 13 0 5 0 7 13 7 0 7 5 13 5 7 0 5 13 7 13 0 13 5 13 0 13

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Alphabet {0, 5, 7, 13}

size 4 · diameter 13 · record length 377 · JSON

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

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Record history

• 377 (was 341) — Aayush Rajasekaran, 2026-08-26
• 341 (first) — Aayush Rajasekaran, 2026-08-20

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