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A211922 Number of (w,x,y,z) with all terms in {1,...,n} and 2*w*x>3*y*z.

%I A211922 #10 Dec 04 2016 19:46:28
%S A211922 0,0,5,23,80,218,456,865,1505,2428,3732,5522,7841,10877,14710,19424,
%T A211922 25221,32282,40624,50551,62171,75686,91309,109293,129662,152868,
%U A211922 179061,208361,241167,277832,318330,363247,412725,467063,526644,591736,662511,739687,823382
%N A211922 Number of (w,x,y,z) with all terms in {1,...,n} and 2*w*x>3*y*z.
%C A211922 a(n)+A211921(n)=n^4.
%C A211922 See A211795 for a guide to related sequences.
%t A211922 t = Compile[{{n, _Integer}}, Module[{s = 0},
%t A211922 (Do[If[2 w*x > 3 y*z, s = s + 1],
%t A211922 {w, 1, #}, {x, 1, #}, {y, 1, #}, {z, 1, #}] &[n]; s)]];
%t A211922 Map[t[#] &, Range[0, 40]] (* A211922 *)
%t A211922 (* _Peter J. C. Moses_, Apr 13 2012 *)
%Y A211922 Cf. A211795.
%K A211922 nonn
%O A211922 0,3
%A A211922 _Clark Kimberling_, Apr 28 2012