Additive Squares

Word of length 136 over {0, 2, 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This is a historical record from 2026-08-20, superseded on 2026-08-30 by length 145jump to the current record (145).

050100-1001020 position in word → partial sum

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

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

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Alphabet {0, 2, 4, 7}

size 4 · diameter 7 · record length 145 · 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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