id:A126561 - OEIS Search Results

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Decimal expansion of (Pi^2-9)/12.

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7, 2, 4, 6, 7, 0, 3, 3, 4, 2, 4, 1, 1, 3, 2, 1, 8, 2, 3, 6, 2, 0, 7, 5, 8, 3, 3, 2, 3, 0, 1, 2, 5, 9, 4, 6, 0, 9, 4, 7, 4, 9, 5, 0, 6, 0, 3, 3, 9, 9, 2, 1, 8, 8, 6, 7, 7, 7, 9, 1, 1, 4, 6, 8, 5, 0, 0, 3, 7, 3, 5, 2, 0, 1, 6, 0, 0, 4, 3, 6, 9, 1, 6, 8, 1, 4, 4, 5, 0, 3, 0, 9, 8, 7, 9, 3, 5, 2, 6, 5 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Sum of infinite series = Sum[1/i/(i+1)/(i+2)^2,{i,1,Infinity}]=(Pi^2-9)/12. For n>1, a(n)=A072691(n+1).`
	FORMULA	`(Pi^2-9)/12 = 0.072467033424113218236207583323`
	CROSSREFS	`Cf. A072691.` `Sequence in context: A021062 A121562 A021142 this_sequence A049477 A113959 A117237` `Adjacent sequences: A126558 A126559 A126560 this_sequence A126562 A126563 A126564`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)gmail.com), Mar 12 2007`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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