A329507 Expansion of (1 + x)*(1 + 2*x + 2*x^2 + 2*x^3 - 3*x^4) / (1 - x).

1, 4, 8, 12, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8

Offset

0,2

Links

Table of n, a(n) for n=0..83.

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

Formula

a(n) = 8 for n >= 5.

Prog

(PARI) Vec((1 + x)*(1 + 2*x + 2*x^2 + 2*x^3 - 3*x^4) / (1 - x) + O(x^80)) \\ Colin Barker, Nov 21 2019

Crossrefs

Row 4 of array in A329504.

Sequence in context: A158457 A072905 A086481 * A046129 A092930 A009012

Adjacent sequences: A329504 A329505 A329506 * A329508 A329509 A329510

Keyword

nonn,easy

Author

N. J. A. Sloane, Nov 20 2019

Status

approved