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