OFFSET
1,2
LINKS
Jianing Song, Table of n, a(n) for n = 1..246
EXAMPLE
8 is a term because the circle with radius sqrt(1729) centered at the origin hits exactly 6*8 = 48 points in the A_2 lattice, and any circle with radius < sqrt(1729) centered at the origin hits fewer than 48 points.
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Jianing Song, May 20 2021
STATUS
approved