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A212099
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Number of (w,x,y,z) with all terms in {1,...,n} and w^3>x^3+y^3+z^3.
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3
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0, 0, 1, 9, 35, 89, 192, 367, 645, 1047, 1620, 2395, 3414, 4749, 6435, 8518, 11079, 14171, 17876, 22272, 27409, 33396, 40290, 48249, 57265, 67548, 79146, 92127, 106708, 122880, 140876, 160757, 182694, 206791, 233160, 262032, 293445
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OFFSET
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0,4
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COMMENTS
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LINKS
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MATHEMATICA
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t = Compile[{{n, _Integer}}, Module[{s = 0},
(Do[If[w^3 > x^3 + y^3 + z^3, s = s + 1],
{w, 1, #}, {x, 1, #}, {y, 1, #}, {z, 1, #}] &[n]; s)]];
Map[t[#] &, Range[0, 40]] (* A212099 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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