Superpermutation Almanac

Bounds

S(12) ≥ 522,622,378

Holds for
n = 12
Announced
Oct 6, 2026
Proof
Lean proof
Points
0.7

By Jakub Halfar.

Evidence

Proof check

kernel-checked

LowerBoundAt 12 522622378

Linking lemma written by the Almanac.