witness #3211

N: 556
|A|: 15
exponent log |A| / log N: 0.4284

status: current record for this modulus
submitted by: David Renshaw
submitted at: 2026-08-19 14:19:54 UTC

Elements (15)

0, 18, 106, 137, 152, 170, 209, 247, 251, 315, 327, 328, 346, 366, 399

Commentary

Ejection-chain local search seeded from witness 2575; independently verified by literal enumeration of all ordered quadruples (exactly 15 solutions, all diagonal).

last edited by David Renshaw at 2026-08-19 14:19:54 UTC · history