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%I #6 Dec 04 2016 19:46:29
%S 0,1,6,15,28,45,66,95,132,173,210,267,320,385,458,523,600,693,786,899,
%T 1000,1109,1226,1367,1492,1629,1778,1931,2084,2269,2426,2615,2812,
%U 3013,3222,3427,3624,3857,4094,4335,4564,4841,5082,5379,5656,5913
%N Number of (w,x,y,z) with all terms in {1,...,n} and w^2+x^2=y^2+z^2.
%C For a guide to related sequences, see A211795.
%t t = Compile[{{n, _Integer}}, Module[{s = 0},
%t (Do[If[w^2 + x^2 == y^2 + z^2, s = s + 1],
%t {w, 1, #}, {x, 1, #}, {y, 1, #}, {z, 1, #}] &[n]; s)]];
%t Map[t[#] &, Range[0, 60]] (* A212087 *)
%t (* _Peter J. C. Moses_, Apr 13 2012 *)
%Y Cf. A211795.
%K nonn
%O 0,3
%A _Clark Kimberling_, May 02 2012
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