A028197 - OEIS

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A028197

Expansion of 1/((1-5x)(1-9x)(1-10x)(1-12x)).

1, 36, 823, 15270, 251161, 3822096, 55123003, 764718570, 10305415021, 135822156756, 1759270703983, 22475843025870, 283991223372481, 3556423423325016, 44213833662081763, 546396746667037170 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Index to sequences with linear recurrences with constant coefficients, signature (36,-473,2670,-5400)`
	FORMULA	`a(n) = 22a(n-1) - 120a(n-2) + (9^(n+1) - 5^(n+1))/4, n>=2. - Vincenzo Librandi, Mar 12 2011` `a(n) = -5^(n+2)/28 -10^(n+2)+212^(n+2)/7 +39^(n+2)/4. - R. J. Mathar, Mar 18 2011`
	CROSSREFS	`Sequence in context: A028221 A000597 A028214 * A028209 A028195 A114238` `Adjacent sequences: A028194 A028195 A028196 * A028198 A028199 A028200`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 23:34 EST 2012. Contains 205860 sequences.