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A147592 Expansion of 1/(1 + x - x^2 - 3 x^3 - x^4 + x^5 + x^6). 0
1, -1, 2, 0, 0, 4, -2, 5, 3, 0, 12, 0, 12, 16, 5, 35, 18, 36, 64, 40, 110, 105, 135, 240, 216, 384, 472, 560, 905, 999, 1458, 1960, 2368, 3500, 4302, 5805, 7947, 9936, 13860, 17920, 23588, 32096, 41229, 55755, 73570, 96460, 129920, 169680, 226206, 300369 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..49.

Index entries for linear recurrences with constant coefficients, signature (-1,1,3,1,-1,-1).

FORMULA

G.f.: 1/((x^3-x-1)*(x^3+x^2-1)). [Colin Barker, Nov 04 2012]

MATHEMATICA

f[x_] = x^3 - x - 1; g[x] = ExpandAll[ -f[x]*x^3*f[1/x]]; a = Table[SeriesCoefficient[Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}]

CROSSREFS

Sequence in context: A158118 A212137 A230295 * A108885 A072740 A226288

Adjacent sequences:  A147589 A147590 A147591 * A147593 A147594 A147595

KEYWORD

sign,easy

AUTHOR

Roger L. Bagula, Nov 08 2008

EXTENSIONS

Edited by Joerg Arndt and Colin Barker, Nov 04 2012

STATUS

approved

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Last modified April 5 20:05 EDT 2020. Contains 333260 sequences. (Running on oeis4.)