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 A211514 #4 Apr 21 2012 12:13:35
%S A211514 0,0,0,2,4,4,6,6,8,10,10,10,16,16,16,18,22,22,24,24,26,28,28,28,34,38,
%T A211514 38,48,50,50,52,52,56,58,58,58,64,64,64,66,68,68,70,70,72,74,74,74,86,
%U A211514 94,98,100,102,102,112,112,114,116,116,116,122,122,122,124
%N A211514 Number of ordered triples (w,x,y) with all terms in {1,...,n} and 3*w^2=x*y.
%C A211514 For a guide to related sequences, see A211422.
%t A211514 t[n_] := t[n] = Flatten[Table[3 w^2 - x*y, {w, 1, n}, {x, 1, n}, {y, 1, n}]]
%t A211514 c[n_] := Count[t[n], 0]
%t A211514 t = Table[c[n], {n, 0, 90}] (* A211514 *)
%t A211514 t/2 (* integers *)
%Y A211514 Cf. A211422.
%K A211514 nonn
%O A211514 0,4
%A A211514 _Clark Kimberling_, Apr 14 2012