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

Author

N. J. A. Sloane, Nov 22 2019

Keywords

• nonn
• easy

Comments

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

Links

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

Crossrefs

Row 2 of array in A329508.

Formula

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