id:A143862 - OEIS Search Results

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Number of compositions of n such that every part is divisible by number of parts.

+0
1

1, 1, 1, 1, 2, 1, 3, 1, 4, 2, 5, 1, 9, 1, 7, 7, 9, 1, 19, 1, 14, 16, 11, 1, 43, 2, 13, 29, 34, 1, 56, 1, 51, 46, 17, 16, 130, 1, 19, 67, 139, 1, 105, 1, 142, 162, 23, 1, 315, 2, 151, 121, 246, 1, 219, 211, 321, 154, 29, 1, 1021, 1, 31, 219, 488, 496, 495, 1, 594, 232, 834, 1, 1439, 1 (list; graph; listen)

	OFFSET	`0,5`
	FORMULA	`G.f.: Sum(x^(k^2)/(1-x^k)^k,k=0..infinity).`
	CROSSREFS	`Cf. A143773.` `Sequence in context: A101279 A064576 A113308 this_sequence A115118 A115121 A124072` `Adjacent sequences: A143859 A143860 A143861 this_sequence A143863 A143864 A143865`
	KEYWORD	`easy,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.yu), Sep 03 2008`
	EXTENSIONS	`More terms from Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Apr 09 2009`

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

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