A096961 - OEIS

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A096961

Sum {0<d|n, n/d odd} d^7.

1, 128, 2188, 16384, 78126, 280064, 823544, 2097152, 4785157, 10000128, 19487172, 35848192, 62748518, 105413632, 170939688, 268435456, 410338674, 612500096, 893871740, 1280016384, 1801914272, 2494358016, 3404825448 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`H. H. Chan and C. Krattenthaler, Recent progress in the study of representations of integers as sums of squares`
	FORMULA	`G.f.: Sum {n>0} n^7 * x^n / (1-x^(2n)).`
	CROSSREFS	`Cf. A007331, A096960, A096962, A096963.` `Sequence in context: A046456 A092759 A056574 * A019564 A128802 A022150` `Adjacent sequences: A096958 A096959 A096960 * A096962 A096963 A096964`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan, Jul 18 2004`

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Last modified February 15 07:12 EST 2012. Contains 205697 sequences.