id:A130222 - OEIS Search Results

Search: id:A130222

Displaying 1-1 of 1 results found.

page 1

Number of partitions of 2n-set in which number of blocks of size 2k-1 is even (or zero) for every k.

+0
1

1, 2, 11, 117, 2116, 54233, 1822053, 76771684, 3922196627, 238355654605, 16936961517144 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`E.g.f.: exp(cosh(x)-1)Product_{k>0} cosh(x^(2k-1)/(2*k-1)!).`
	CROSSREFS	`Cf. A102759.` `Sequence in context: A098437 A069574 A090534 this_sequence A057076 A118794 A001946` `Adjacent sequences: A130219 A130220 A130221 this_sequence A130223 A130224 A130225`
	KEYWORD	`easy,more,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)Eunet.yu), Aug 05 2007, Aug 05 2007`

page 1

Search completed in 0.002 seconds

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.