id:A121442 - OEIS Search Results

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Expansion of (1-x^2)/(1-x-9*x^2+x^3).

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1, 1, 9, 17, 97, 241, 1097, 3169, 12801, 40225, 152265, 501489, 1831649, 6192785, 22176137, 76079553, 269472001, 932011841, 3281180297, 11399814865, 39998425697, 139315579185, 487901595593, 1701743382561, 5953542163713 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(0)=a(1)=1, a(2)=9, a(n+1)=a(n)+9*a(n-1)-a(n-2) for n>=2.`
	CROSSREFS	`Sequence in context: A166705 A116526 A015443 this_sequence A049440 A073221 A110462` `Adjacent sequences: A121439 A121440 A121441 this_sequence A121443 A121444 A121445`
	KEYWORD	`nonn`
	AUTHOR	`Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 06 2006`
	EXTENSIONS	`Corrected by T. D. Noe (noe(AT)sspectra.com), Oct 25 2006`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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