Ruzsa’s genus-one problem

← home  ·  all witnesses

witness #1535

N
840
|A|
20
exponent log |A| / log N
0.4449
status
current record for this modulus
submitted by
Yongxi (Aaron) Lin
submitted at
2026-08-07 19:33:00 UTC

Elements (20)

12, 16, 36, 52, 89, 151, 221, 237, 274, 302, 376, 479, 487, 507, 561, 667, 671, 692, 724, 806

Commentary

Found by simulated annealing over subsets of Z/N, minimizing the count of nontrivial solutions to a+3b=2c+2d.

last edited by Yongxi (Aaron) Lin at 2026-08-07 19:33:00 UTC · history

Log in to add commentary.