OFFSET
1,2
LINKS
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
MATHEMATICA
With[{nn=80}, Take[Union[2#[[1]]+7#[[2]]&/@Tuples[Range[0, nn/4]^2, 2]], nn]] (* Harvey P. Dale, Jul 17 2015 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
STATUS
approved