id:A085111 - OEIS Search Results

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a(1) = 1; then add 1, multiply by 2, subtract 3, multiply by 4, add 5, multiply by 6, subtract 7, multiply by 8, and so on.

+0
1

1, 2, 4, 1, 4, 9, 54, 47, 376, 385, 3850, 3839, 46068, 46081, 645134, 645119, 10321904, 10321921, 185794578, 185794559, 3715891180, 3715891201, 81749606422, 81749606399, 1961990553576 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A060047 A135185 A011029 this_sequence A126126 A078739 A004597` `Adjacent sequences: A085108 A085109 A085110 this_sequence A085112 A085113 A085114`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 04 2003`
	EXTENSIONS	`More terms from Ray G. Opao (1260(AT)email.com), Apr 15 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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