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%I #4 Apr 15 2012 21:22:56
%S 1,7,13,19,27,37,47,57,67,77,87,97,107,117,131,145,159,173,187,201,
%T 215,229,243,257,271,285,299,313,327,341,355,369,385,403,421,439,457,
%U 475,493,511,529,547,565,583,601,619,637,655,673,691,709,727,745
%N Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w^3+(x+y)^2=0.
%C For a guide to related sequences, see A211422.
%t t[n_] := t[n] = Flatten[Table[w^3 + (x + y)^2, {w, -n, n}, {x, -n, n}, {y, -n, n}]]
%t c[n_] := Count[t[n], 0]
%t t = Table[c[n], {n, 0, 80}] (* A211431 *)
%t (t - 1)/2 (* integers *)
%Y Cf. A211422.
%K nonn
%O 0,2
%A _Clark Kimberling_, Apr 10 2012
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