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Search: id:A102289
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| A102289 |
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Total number of odd lists in all sets of lists, cf. A000262. |
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+0
1
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| 1, 2, 15, 76, 665, 5286, 56287, 597080, 7601841, 99702730, 1484554511, 23049638052, 393702612745, 7036703742446, 135702811542495, 2737989749177776, 58848546456947297, 1321063959370833810
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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E.g.f.: x/(1-x^2)*exp(x/(1-x)).
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MAPLE
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G:=(x/(1-x^2))*exp(x/(1-x)): Gser:=series(G, x=0, 25): seq(n!*coeff(Gser, x^n), n=1..22); (Deutsch)
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CROSSREFS
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Cf. A052852, A066897, A066898, A059570, A059570, A081358, A092691.
Sequence in context: A125903 A007232 A099743 this_sequence A041243 A056079 A036239
Adjacent sequences: A102286 A102287 A102288 this_sequence A102290 A102291 A102292
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KEYWORD
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easy,nonn
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AUTHOR
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Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 19 2005
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EXTENSIONS
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More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Jun 24 2005
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