id:A102760 - OEIS Search Results

Search: id:A102760

Displaying 1-1 of 1 results found.

page 1

Number of partitions of n-set into "lists", in which every even list appears an even number of times, cf. A000262.

+0
1

1, 1, 7, 37, 241, 1381, 13231, 140617, 1483777, 16211881, 217551511, 3384215341, 50221272817, 782154787597, 13913712591871, 272739557719441, 5282625708305281, 106588332600443857, 2354480141600267047 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`E.g.f.: exp(x/(1-x^2))Product_{k>0} cosh(x^(2k)).`
	CROSSREFS	`Cf. A003483, A006950, A088026.` `Adjacent sequences: A102757 A102758 A102759 this_sequence A102761 A102762 A102763` `Sequence in context: A046235 A025012 A039938 this_sequence A096965 A100309 A089677`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)Eunet.yu), Feb 10 2005`

page 1

Search completed in 0.002 seconds

Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

AT&T Labs Research