OFFSET
1,2
LINKS
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
MATHEMATICA
Take[Union[7#[[1]]+9#[[2]]&/@Tuples[Range[0, 20]^2, 2]], 60] (* Harvey P. Dale, Aug 22 2014 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
STATUS
approved