id:A131136 - OEIS Search Results

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Denominator of (exponential) expansion of log((x/2-1)/(x-1)).

+0
4

1, 2, 4, 4, 8, 4, 8, 8, 16, 4, 8, 8, 16, 8, 16, 16, 32, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 8, 16, 16, 32, 16, 32, 32, 64, 16, 32, 32, 64, 32, 64, 64, 128, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`a(n+1)=2^A063787(n). a(n+1)=A001316(n)/2. - Stephen Crowley (crow(AT)crowlogic.net), Aug 25 2008`
	FORMULA	`a(n)=0^n+n+sum((-1)^(1+binomial(n-1,k)),k=0..n-1) - Stephen Crowley (crow(AT)crowlogic.net), Aug 25 2008`
	MAPLE	`a(n)=abs(op(1, numer(expand(Zeta(2n)/Zeta(1-2n))))) - Stephen Crowley (crow(AT)crowlogic.net), Aug 25 2008`
	CROSSREFS	`Cf. A001316, A131135.` `Adjacent sequences: A131133 A131134 A131135 this_sequence A131137 A131138 A131139` `Cf. A063787.` `Sequence in context: A055077 A117215 A011173 this_sequence A140434 A107748 A005884`
	KEYWORD	`nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jun 17 2007`

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Last modified October 6 12:54 EDT 2008. Contains 144667 sequences.

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