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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
FORMULA
a(n) = (-1)^n*3^(n+2)/14 + 4^(n+2)/35 - (-1)^n/10. - R. J. Mathar, Jan 09 2015
CROSSREFS
Sequence in context: A019331 A004454 A113548 * A195210 A175850 A176306
KEYWORD
nonn,easy
AUTHOR
Alex Ratushnyak, Dec 28 2014
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)