id:A103198 - OEIS Search Results

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Number of compositions of n into a square number of parts.

+0
1

1, 1, 1, 2, 5, 11, 21, 36, 58, 94, 166, 331, 716, 1574, 3368, 6892, 13447, 25127, 45391, 80428, 142615, 259085, 491855, 982400, 2045001, 4352661, 9291361, 19609786, 40574017, 81973315, 161568281, 311062991, 586764281, 1089615033, 2005257849 (list; graph; listen)

	OFFSET	`1,4`
	FORMULA	`a(n) = Sum_{k>0} (x/(1-x))^(k^2).`
	CROSSREFS	`Cf. A089333, A052467.` `Adjacent sequences: A103195 A103196 A103197 this_sequence A103199 A103200 A103201` `Sequence in context: A113032 A100134 A137356 this_sequence A003522 A112805 A119970`
	KEYWORD	`easy,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 18 2005`

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Last modified October 16 00:31 EDT 2008. Contains 145098 sequences.

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