id:A095814 - OEIS Search Results

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Number of nonisomorphic partitions of n on the Ferrers diagram.

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1

1, 1, 1, 2, 3, 4, 6, 8, 11, 15, 21, 28, 39, 51, 68, 88, 116, 149, 193, 245, 314, 396, 501, 628, 788, 979, 1218, 1505, 1859, 2283, 2802, 3421, 4175, 5072, 6155, 7442, 8989, 10819, 13008, 15593, 18669, 22292, 26587, 31631, 37588, 44567, 52779, 62377 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`Partitions of n into at most ceil(n/2) parts and with at least 1 part greater than or equal to n-floor(n/2)`
	FORMULA	`a(n) = A000041(n)/n A000041(n) even and (A000041(n)+1)/2 A000041(n) odd`
	EXAMPLE	`a(5) is given by 5,41,32,311`
	PROGRAM	`(PARI)`
	CROSSREFS	`Sequence in context: A023434 A087192 A046935 this_sequence A006683 A014213 A064323` `Adjacent sequences: A095811 A095812 A095813 this_sequence A095815 A095816 A095817`
	KEYWORD	`nonn`
	AUTHOR	`Jon Perry (perry(AT)globalnet.co.uk), Jul 13 2004`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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