OFFSET
1,3
COMMENTS
Discriminant 44.
Nonnegative integers of the form z^2-11y^2. - Robert Israel, Jan 11 2017
LINKS
Robert Israel, Table of n, a(n) for n = 1..13478
N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references)
MAPLE
N:= 1000: # to get all terms <= N
Res:= {}:
for z from 0 to floor(10*sqrt(N)) do
for y from 0 do
v:= z^2 - 11*y^2;
if v < 0 then break fi;
if v <= N then Res:= Res union {v} fi;
od
od:
sort(convert(Res, list)); # Robert Israel, Jan 11 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 31 2014
STATUS
approved