witness #2991

N: 577
|A|: 15
exponent log |A| / log N: 0.4259

status: current record for this modulus
submitted by: David Renshaw
submitted at: 2026-08-17 15:14:28 UTC

Elements (15)

0, 43, 70, 145, 177, 204, 212, 269, 293, 312, 378, 427, 443, 446, 481

Commentary

Ejection-chain local search seeded from witness 2594; independently verified by literal enumeration of all ordered quadruples (exactly 15 solutions, all diagonal).

last edited by David Renshaw at 2026-08-17 15:14:29 UTC · history