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%I #6 Dec 04 2016 19:46:29
%S 0,1,11,33,76,144,262,415,655,959,1377,1886,2610,3396,4465,5689,7169,
%T 8883,11042,13334,16240,19355,23003,27059,31892,36952,42878,49384,
%U 56659,64471,73683,83042,93938,105470,118114,131855,147087,162883
%N Number of (w,x,y,z) with all terms in {1,...,n} and w*x+y*z>=n^2.
%C A212132(n)+A212111(n)=n^4. For a guide to related sequences, see A211795.
%t t = Compile[{{n, _Integer}}, Module[{s = 0},
%t (Do[If[w*x + y*z >= n^2, s = s + 1],
%t {w, 1, #}, {x, 1, #}, {y, 1, #}, {z, 1, #}] &[n]; s)]];
%t Map[t[#] &, Range[0, 40]] (* A212132 *)
%t (* _Peter J. C. Moses_, Apr 13 2012 *)
%Y Cf. A211795.
%K nonn
%O 0,3
%A _Clark Kimberling_, May 07 2012
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