OFFSET
1,2
COMMENTS
Discriminant -36.
All terms mod 12 are in {0, 2, 5, 6, 8, 9}. - R. J. Mathar, Jul 07 2023
LINKS
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 02 2014
STATUS
approved