A164848 - OEIS

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A164848

A026741(n)/A051712(n+1).

1, 1, 3, 2, 1, 3, 1, 4, 3, 1, 1, 6, 1, 1, 3, 4, 1, 3, 1, 2, 3, 1, 1, 12, 1, 1, 3, 2, 1, 3, 1, 4, 3, 1, 1, 6, 1, 1, 3, 4, 1, 3, 1, 2, 3, 1, 1, 12, 1, 1, 3, 2, 1, 3, 1, 4, 3, 1, 1, 6, 1, 1, 3, 4, 1, 3, 1, 2, 3, 1, 1, 12, 1, 1, 3, 2, 1, 3, 1, 4, 3, 1, 1, 6, 1, 1, 3, 4, 1, 3, 1, 2, 3, 1, 1, 12, 1, 1, 3, 2, 1, 3, 1, 4, 3 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`Twice connected to Bernoulli numbers A164555/A027642 via the Akiyama-Tanigawa algorithm.` `Conjecture (checked for the first 3000 entries): periodic with a(n+24)=a(n).` `Is this a multiplicative function?`
	MAPLE	`b := proc(n) n/(n+1)/(n+2) ; end: A051712 := proc(n) numer( b(n)-b(n+1)) ; end:` `A026741 := proc(n) if type(n, 'odd') then n; else n/2; fi; end:` `A164848 := proc(n) A026741(n)/A051712(n+1) ; end: seq(A164848(n), n=1..120) ; # R. J. Mathar, Sep 06 2009`
	CROSSREFS	`Sequence in context: A112745 A205564 A036585 * A130827 A070309 A130784` `Adjacent sequences: A164845 A164846 A164847 * A164849 A164850 A164851`
	KEYWORD	`nonn`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Aug 28 2009`
	EXTENSIONS	`Offset set to 1 by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 06 2009`

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Last modified February 15 18:22 EST 2012. Contains 205835 sequences.