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A249998 Expansion of 1/((1+x)*(1+3*x)*(1-4*x)). 1
1, 0, 13, 12, 169, 312, 2341, 6084, 34177, 107184, 517309, 1803516, 8011225, 29653416, 125788117, 481629108, 1991086513, 7770635808, 31663673965, 124911303660, 504875391241, 2003811035160, 8062315730053, 32108048151972, 128855836912609, 514152414736272, 2060422457687581 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..26.

Index entries for linear recurrences with constant coefficients, signature (0,13,12).

FORMULA

a(n) = (-1)^n*3^(n+2)/14 + 4^(n+2)/35 - (-1)^n/10. - R. J. Mathar, Jan 09 2015

CROSSREFS

Cf. A016208, A099621, A249997.

Sequence in context: A019331 A004454 A113548 * A195210 A175850 A176306

Adjacent sequences:  A249995 A249996 A249997 * A249999 A250000 A250001

KEYWORD

nonn,easy

AUTHOR

Alex Ratushnyak, Dec 28 2014

STATUS

approved

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Last modified December 12 16:06 EST 2018. Contains 318077 sequences. (Running on oeis4.)