A028209 - OEIS

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A028209

Expansion of 1/((1-6x)(1-7x)(1-11x)(1-12x)).

1, 36, 823, 15282, 251881, 3847032, 55777051, 779149134, 10588135261, 140901434388, 1844713666159, 23841089487306, 304926682591441, 3866889746187504, 48692419436767747, 609526612369569798 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Index to sequences with linear recurrences with constant coefficients, signature (36,-473,2682,-5544)`
	FORMULA	`a(n) = 23a(n-1) - 132a(n-2) + 7^(n+1) - 6^(n+1), n>=2. - Vincenzo Librandi, Mar 13 2011` `a(n) = -6^(n+2)/5 -11^(n+3)/20 + 2*12^(n+2)/5 +7^(n+3)/20. - R. J. Mathar, Mar 18 2011`
	CROSSREFS	`Sequence in context: A000597 A028214 A028197 * A028195 A114238 A028163` `Adjacent sequences: A028206 A028207 A028208 * A028210 A028211 A028212`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.