A048634 - OEIS

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A048634

a(n)=a(n-1)*a(n-3)+a(n-2).

0, 0, 1, 0, 1, 1, 1, 2, 3, 5, 13, 44, 233, 3073, 135445, 31561758, 96989417779, 13136731722638413, 414618347540933702027833, 40213592128486236142855326045681320, 528275171395527518169753769210241662354568290572993 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,8`
	MAPLE	`A048634 := proc(n) option remember; if n<=1 then 0 elif n=2 then 1 else A048634(n-1)*A048634(n-3)+A048634(n-2); fi; end;`
	CROSSREFS	`Sequence in context: A192241 A093999 A042445 * A012899 A110364 A111288` `Adjacent sequences: A048631 A048632 A048633 * A048635 A048636 A048637`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), David(AT)interface.co.uk`

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Last modified February 17 11:35 EST 2012. Contains 206011 sequences.