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Search: id:A135099
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| A135099 |
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a(1)=1, a(n)=a(n-1)+n^5 if n odd, a(n)=a(n-1)+ n^3 if n is even. |
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+0
2
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| 1, 9, 252, 316, 3441, 3657, 20464, 20976, 80025, 81025, 242076, 243804, 615097, 617841, 1377216, 1381312, 2801169, 2807001, 5283100, 5291100, 9375201, 9385849, 15822192, 15836016, 25601641, 25619217, 39968124, 39990076, 60501225
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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a = {}; r = 5; s = 3; Do[k = 0; Do[k = k + (Sin[Pi m/2]^2) m^r + (Cos[Pi m/2]^2) m^s, {m, 1, n}]; AppendTo[a, k], {n, 1, 100}]; a (*Artur Jasinski*)
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CROSSREFS
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Cf. A000027, A000217, A000330, A000537, A000538, A000539, A136047, A140113.
Adjacent sequences: A135096 A135097 A135098 this_sequence A135100 A135101 A135102
Sequence in context: A007408 A066989 A075987 this_sequence A073427 A135484 A025133
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KEYWORD
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nonn
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AUTHOR
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Jasinski Artur (grafix(AT)csl.pl), May 12 2008
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