Voozh

A135169

Period 4: repeat [1, 5, 9, 5].

1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5, 1, 5, 9, 5

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

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..103.

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

FORMULA

From R. J. Mathar, Feb 19 2008: (Start)

G.f.: -4/(x^2+1) - 5/(x-1).

a(n) = 5 - 4*A056594(n).

a(n) = a(n-4) for n>3. (End)

From Wesley Ivan Hurt, Jul 08 2016: (Start)