A130630 Periodic sequence with period 1 1 1 1 1 0 0 0 0.

1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0

Offset

0,1

Links

Table of n, a(n) for n=0..98.

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,1).

Formula

G.f.: -(1+x+x^2+x^3+x^4) / ( (x-1)*(1+x+x^2)*(x^6+x^3+1) ). - R. J. Mathar, Nov 19 2011

Prog

(PARI) a(n)=1-n%9\5 \\ Charles R Greathouse IV, Jun 02 2011

Crossrefs

Sequence in context: A014119 A084052 A352677 * A059318 A071029 A071030

Adjacent sequences: A130627 A130628 A130629 * A130631 A130632 A130633

Keyword

nonn,easy,less

Author

Paul Curtz, Jun 19 2007

Status

approved