From the N=925 seed: complete its affine-normalized 22-point exact (Z/25)^2 code to a saturated 25-point core, apply GL2(Z/25) coordinates [[3,22],[23,10]], double by vertical shift 25, and delete a 6-point hitting set for the q=138 wraparound defects.
Yongxi (Aaron) Lin · 2026-08-09 16:36:59 UTC