%I #4 Apr 19 2012 17:39:20
%S 0,0,1,2,2,4,4,6,5,6,8,8,8,12,8,10,12,12,11,16,12,16,16,12,16,20,14,
%T 16,22,20,16,24,17,22,24,16,22,30,16,24,30,26,20,28,26,28,32,18,26,38,
%U 21,30,36,28,28,34,30,36,34,26,34,46,20,28,46,36,32,40,30,42,40
%N Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^2=n-x*y.
%C For a guide to related sequences, see A211422.
%t t[n_] := t[n] = Flatten[Table[w^2 + x*y - n, {w, 1, n}, {x, 1, n}, {y, 1, n}]]
%t c[n_] := Count[t[n], 0]
%t t = Table[c[n], {n, 0, 80}] (* A211508 *)
%Y Cf. A211422.
%K nonn
%O 0,4
%A _Clark Kimberling_, Apr 14 2012
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