id:A069986 - OEIS Search Results

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Denominator of b(n)=binomial(2n,n)^3*(42n+5)/2^(12n+4).

+0
2

16, 8192, 33554432, 17179869184, 562949953421312, 288230376151711744, 1180591620717411303424, 604462909807314587353088, 158456325028528675187087900672, 81129638414606681695789005144064 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`sum(n>=1, b(n))=1/Pi (Ramanujan)`
	CROSSREFS	`Cf. A069985.` `Sequence in context: A097547 A088654 A079920 this_sequence A151641 A006448 A017092` `Adjacent sequences: A069983 A069984 A069985 this_sequence A069987 A069988 A069989`
	KEYWORD	`easy,frac,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 01 2002`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research