id:A128493 - OEIS Search Results

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Denominators of partial sums for a series for (Pi^4)/96.

+0
2

1, 81, 50625, 121550625, 9845600625, 144149438750625, 4117052120156600625, 4117052120156600625, 343860310127599440800625, 44812219476138886724578250625, 44812219476138886724578250625 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Numerators are given in A120269.` `See the comments and the W. Lang link under A120269.`
	FORMULA	`a(n)=denominator(r(n)) with r(n):=sum(1/(2*k-1)^4,k=1..n).`
	CROSSREFS	`Adjacent sequences: A128490 A128491 A128492 this_sequence A128494 A128495 A128496` `Sequence in context: A017428 A088188 A017560 this_sequence A013745 A093227 A033435`
	KEYWORD	`nonn,frac,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de) Apr 04 2007`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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