A329509 Expansion of (1 + x)*(1 + x + x^2 - x^3) / (1 - x).

1, 3, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4

Offset

0,2

Comments

Decimal expansion of 12199/90000. - Elmo R. Oliveira, May 06 2024

Links

Table of n, a(n) for n=0..84.

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

Formula

a(n) = 4 for n >= 4.

Mathematica

PadRight[{1, 3, 5, 5}, 100, 4] (* Paolo Xausa, Jul 08 2026 *)

Crossrefs

Row 2 of array in A329508.

Sequence in context: A189202 A153098 A388826 * A119280 A307634 A265222

Adjacent sequences: A329506 A329507 A329508 * A329510 A329511 A329512

Keyword

nonn,easy,changed

Author

N. J. A. Sloane, Nov 22 2019

Status

approved