id:A131174 - OEIS Search Results

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a(2n) = 2*A000217(n), a(2n+1) = A000217(n).

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0, 0, 2, 1, 6, 3, 12, 6, 20, 10, 30, 15, 42, 21, 56, 28, 72, 36, 90, 45, 110, 55, 132, 66, 156, 78, 182, 91, 210, 105, 240, 120, 272, 136, 306, 153, 342, 171, 380, 190, 420, 210, 462, 231, 506, 253, 552, 276, 600, 300, 650, 325, 702, 351, 756, 378, 812, 406, 870, 435 (list; graph; listen)

	OFFSET	`0,3`
	MAPLE	`A000217 := proc(n) n(n+1)/2 ; end: A131174 := proc(n) if n mod 2 = 0 then 2A000217(n/2) ; else A000217((n-1)/2) ; fi ; end: seq(A131174(n), n=0..90) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 26 2007`
	CROSSREFS	`Sequence in context: A026191 A050137 A086111 this_sequence A135994 A133166 A051482` `Adjacent sequences: A131171 A131172 A131173 this_sequence A131175 A131176 A131177`
	KEYWORD	`nonn`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Sep 24 2007`
	EXTENSIONS	`Edited by njas, Sep 27 2007` `More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 26 2007`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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