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Search: id:A096939
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A096939 Number of sets of odd number of even lists, cf. A000262. +0
1
0, 2, 6, 36, 260, 1950, 19362, 193256, 2326536, 29272410, 413257790, 6231230412, 101415565836, 1769925341366, 32734873484250, 646218442877520, 13404753632014352, 294656673023216946, 6775966692145553526 (list; graph; listen)
OFFSET

1,2

FORMULA

E.g.f.: exp(x/(1-x^2))*sinh(x^2/(1-x^2)).

MATHEMATICA

Drop[ Range[0, 20]! CoefficientList[ Series[ Exp[(x/(1 - x^2))] Sinh[x^2/(1 - x^2)], {x, 0, 20}], x], 1] (from Robert G. Wilson v Aug 19 2004)

CROSSREFS

Cf. A088026, A088009.

Sequence in context: A075096 A109284 A060178 this_sequence A107099 A007657 A055541

Adjacent sequences: A096936 A096937 A096938 this_sequence A096940 A096941 A096942

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)Eunet.yu), Aug 18 2004

EXTENSIONS

More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 19 2004

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Last modified September 6 00:03 EDT 2008. Contains 143485 sequences.


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