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A016227 Expansion of 1/((1-x)(1-4x)(1-12x)). 0
1, 17, 225, 2785, 33761, 406497, 4883425, 58622945, 703562721, 8443102177, 101318624225, 1215829083105, 14589971366881, 175079745881057, 2100957308486625, 25211489133495265, 302537875328566241 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

Index entries for linear recurrences with constant coefficients, signature (17, -64, 48).

FORMULA

a(n) = (1/33) - (2/3)*4^(n-1) + (18/11)*12^(n-1). - Antonio Alberto Olivares, Feb 07 2010

a(0)=1, a(1)=17, a(n) = 16*a(n-1) - 48*a(n-2) + 1. - Vincenzo Librandi, Feb 10 2011

CROSSREFS

Sequence in context: A160398 A181380 A081044 * A155001 A012095 A296999

Adjacent sequences:  A016224 A016225 A016226 * A016228 A016229 A016230

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified December 2 03:22 EST 2020. Contains 338865 sequences. (Running on oeis4.)