A077890 - OEIS

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A077890

Expansion of (1-x)^(-1)/(1+x^2+2*x^3).

1, 1, 0, -2, -1, 3, 6, 0, -11, -11, 12, 34, 11, -57, -78, 36, 193, 121, -264, -506, 23, 1035, 990, -1080, -3059, -899, 5220, 7018, -3421, -17457, -10614, 24300, 45529, -3071, -94128, -87986, 100271, 276243, 75702, -476784, -628187, 325381, 1581756, 930994, -2232517, -4094505, 370530

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

LINKS

Table of n, a(n) for n=0..46.

Index entries for linear recurrences with constant coefficients, signature (1,-1,-1,2).

MATHEMATICA

CoefficientList[Series[(1-x)^(-1)/(1+x^2+2*x^3), {x, 0, 50}], x] (* or *) LinearRecurrence[{1, -1, -1, 2}, {1, 1, 0, -2}, 50] (* Harvey P. Dale, Apr 07 2018 *)

CROSSREFS

Sequence in context: A241498 A143581 A096871 * A077877 A144867 A081520

Adjacent sequences: A077887 A077888 A077889 * A077891 A077892 A077893

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Nov 17 2002

STATUS

approved