A329503 G.f. = (1+x)*(1+2*x+2*x^2)/(1-x).

1, 4, 8, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10

Offset

0,2

Links

Table of n, a(n) for n=0..64.

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

Formula

a(n) = 10 for n >= 3.

Prog

(PARI) Vec((1 + x)*(1 + 2*x + 2*x^2) / (1 - x) + O(x^80)) \\ Colin Barker, Nov 19 2019

Crossrefs

Row 5 of array in A329501.

Sequence in context: A377034 A265733 A266146 * A108806 A310967 A310968

Adjacent sequences: A329500 A329501 A329502 * A329504 A329505 A329506

Keyword

nonn

Author

N. J. A. Sloane, Nov 19 2019

Status

approved