Length 159 over {0, 1, 4, 7} — Additive Squares

Word of length 159 over {0, 1, 4, 7}

by Aayush Rajasekaran, 2026-08-20 · JSON

This is a historical record from 2026-08-20, superseded on 2026-08-30 by length 161 — jump to the current record (161).

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

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

Alphabet {0, 1, 4, 7}

size 4 · diameter 7 · record length 161 · 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

161 (was 159) — Aayush Rajasekaran, 2026-08-30
159 (first) — Aayush Rajasekaran, 2026-08-20

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