OFFSET
1,3
COMMENTS
Discriminant 48.
Also nonnegative integers of the form 4x^2 - 3y^2. - Jon E. Schoenfield, Jun 03 2022
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 01 2014
STATUS
approved