id:A115277 - OEIS Search Results

Search: id:A115277

Displaying 1-1 of 1 results found.

page 1

Number of partitions of {1,...,n} into blocks such that no even sized block is repeated.

+0
4

1, 1, 2, 5, 12, 37, 143, 562, 2320, 10941, 54865, 283890, 1604155, 9558226, 58668223, 384572975, 2631778832, 18576630237, 137919691717, 1060303298138, 8415786131309, 69538205444478, 591734670548037, 5194542789203877 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`E.g.f.: exp(sinh(x)) * Product {m >= 1} (1+x^(2m)/(2m)!).`
	CROSSREFS	`Cf. A001935, A115275, A115276, A115278.` `Adjacent sequences: A115274 A115275 A115276 this_sequence A115278 A115279 A115280` `Sequence in context: A024717 A003724 A138314 this_sequence A130221 A036782 A050237`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Jan 18 2006`

page 1

Search completed in 0.002 seconds

Last modified October 13 17:46 EDT 2008. Contains 145008 sequences.

AT&T Labs Research