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A077901 Expansion of (1-x)^(-1)/(1+x-x^2-2*x^3). 1
1, 0, 2, 1, 2, 4, 1, 8, 2, 9, 10, 4, 25, 0, 34, 17, 18, 68, -15, 120, 2, 89, 154, -60, 393, -144, 418, 225, -94, 1156, -799, 1768, -254, 425, 2858, -2940, 6649, -3872, 4642, 4785, -7886, 21956, -20271, 26456, -2814, -11271, 61370, -78268, 117097, -72624, 33186, 128385, -240446, 435204 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..53.

MATHEMATICA

CoefficientList[Series[(1-x)^(-1)/(1+x-x^2-2x^3), {x, 0, 80}], x]  (* Harvey P. Dale, Mar 20 2011 *)

PROG

(PARI) Vec((1-x)^(-1)/(1+x-x^2-2*x^3)+O(x^99)) \\ Charles R Greathouse IV, Sep 27 2012

CROSSREFS

First differences are in A077971.

Sequence in context: A157751 A177701 A119765 * A105619 A121439 A009205

Adjacent sequences:  A077898 A077899 A077900 * A077902 A077903 A077904

KEYWORD

sign,easy

AUTHOR

N. J. A. Sloane, Nov 17 2002

STATUS

approved

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Last modified November 1 07:47 EDT 2014. Contains 248888 sequences.