id:A089004 - OEIS Search Results

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Number of partitions of an n-element set that have at least one odd block.

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1, 1, 5, 11, 52, 172, 877, 3761, 21147, 109419, 678570, 4063248, 27644437, 186525861, 1382958545, 10323844183, 82864869804, 675378319788, 5832742205057, 51386368744773, 474869816156751, 4486977535640087 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`E.g.f.: exp(cosh(x)-1)*(exp(sinh(x))-1).`
	CROSSREFS	`Cf. A000110, A005046, A003724, A086543, A087137.` `Sequence in context: A149524 A149525 A149526 this_sequence A094107 A107009 A149527` `Adjacent sequences: A089001 A089002 A089003 this_sequence A089005 A089006 A089007`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 02 2003`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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