This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A211810 #4 May 08 2012 16:43:40
%S A211810 0,3,11,28,56,97,153,230,330,453,605,788,1002,1251,1541,1872,2244,
%T A211810 2667,3139,3662,4240,4877,5571,6330,7158,8055,9021,10062,11182,12379,
%U A211810 13657,15026,16480,18021,19661,21398,23232,25169,27211,29362,31618
%N A211810 Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^2>x^2+y^2.
%C A211810 Row 2 of A182259; see A211790 for a discussion and guide to related sequences.
%t A211810 (See the program at A182259.)
%Y A211810 Cf. A211790, A182259.
%K A211810 nonn
%O A211810 1,2
%A A211810 _Clark Kimberling_, Apr 22 2012