id:A122092 - OEIS Search Results

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A122092

a(0)=1; a(1)=1; a(n)=(n-2)a(n-1)-(n-1)a(n-2).

+0
1

1, 1, -1, -3, -3, 3, 27, 117, 513, 2655, 16623, 123057, 1047717, 10048203, 106958115, 1249780653, 15892557417, 218391870807, 3224096456823, 50878586091465, 854556716966733 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`a[0]=1; a[1]=1; a[n_]:=a[n]=(n-2)a[n-1]-(n-1)a[n-2] Table[a[n], {n, 0, 20}]`
	CROSSREFS	`Sequence in context: A073748 A131445 A033874 this_sequence A025549 A135584 A091323` `Adjacent sequences: A122089 A122090 A122091 this_sequence A122093 A122094 A122095`
	KEYWORD	`sign`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Oct 17 2006`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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