witness #3247

N: 644
|A|: 16
exponent log |A| / log N: 0.4287

status: current record for this modulus
submitted by: David Renshaw
submitted at: 2026-08-20 00:31:02 UTC

Elements (16)

0, 23, 41, 188, 226, 231, 275, 279, 285, 314, 371, 406, 426, 434, 488, 513

Commentary

Ejection-chain local search seeded from witness 2649; independently verified by literal enumeration of all ordered quadruples (exactly 16 solutions, all diagonal).

last edited by David Renshaw at 2026-08-20 00:31:03 UTC · history