id:A132207 - OEIS Search Results

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For 3n+1,a(2n+1)=4a(2n)-9n.

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1, 4, 7, 19, 10, 22, 13, 25, 16, 28, 31, 79, 34, 82, 37, 85, 40, 88, 43, 91, 46, 94, 49, 97, 52, 100, 55, 103, 58, 106, 61, 109, 64, 112, 67, 115, 70, 118, 73, 121, 76, 124, 127, 319, 130, 322, 133, 325, 136, 328, 139, 331, 142, 334, 145, 337, 148, 340, 151, 343, 154 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`One possibility is that this was intended to have a(2n)=A016777(n) at the even indices and a(2n+1)=4a(2n)-9n, a shifted version of A016777, at the odd indices. However, inspection shows that this does not match the present sequence. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 20 2008`
	CROSSREFS	`Sequence in context: A077920 A135582 A100828 this_sequence A097537 A032723 A063605` `Adjacent sequences: A132204 A132205 A132206 this_sequence A132208 A132209 A132210`
	KEYWORD	`nonn,uned,obsc`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Nov 06 2007`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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