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Search: id:A035300
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| A035300 |
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Expansion of sum(q^n / product( 1-q^k, k=1..n+4), n=0..inf). |
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+0
4
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| 1, 2, 4, 7, 12, 18, 28, 40, 58, 80, 111, 149, 201, 264, 348, 450, 583, 744, 950, 1199, 1514, 1893, 2366, 2935, 3638, 4480, 5513, 6746, 8247, 10035, 12196, 14763, 17850, 21504, 25875, 31038, 37184, 44422
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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a(n) = A000041(n+4)-round((n+7)^2/12). - Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 18 2003
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MAPLE
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ZL :=[S, {S = Set(Cycle(Z), 3 < card)}, unlabelled]: seq(combstruct[count](ZL, size=n), n=4..41); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 25 2008
B:=[S, {S = Set(Sequence(Z, 1 <= card), card >=4)}, unlabelled]: seq(combstruct[count](B, size=n), n=4..41); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 21 2009]
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CROSSREFS
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Cf. A004250, A035301.
Sequence in context: A002621 A033500 A003318 this_sequence A035296 A105807 A066699
Adjacent sequences: A035297 A035298 A035299 this_sequence A035301 A035302 A035303
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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