Word of length 58 over {0, 3, 4, 7}
Display: drawn for the equivalent alphabet translated by -4 (drift removed).
0 3 0 4 0 7 4 0 3 7 4 0 7 4 7 3 7 4 7 0 4 0 3 0 4 0 7 4 0 3 7 4 3 7 3 0 3 7 3 4 7 4 0 4 7 4 3 7 4 0 3 7 4 3 7 3 0 3
Alphabet {0, 3, 4, 7}
closed The exact maximum additive-square-free word length over this alphabet is 58. verified by SAT solver - there is no valid word of length 59
Closure claims
- accepted max 58 claimed by Ethan Ackelsberg, 2026-08-25 — verified by SAT solver - there is no valid word of length 59
Record history
- 58 (first) — Aayush Rajasekaran, 2026-08-20
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