A132151 Period 8: repeat [0, 1, 0, 0, 0, 0, -1, 0].

0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, -1, 0

Offset

0,1

Links

Table of n, a(n) for n=0..87.

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

Formula

a(n) = floor((n-1)/8) - floor((n-2)/8) - floor((n-6)/8) + floor((n-7)/8). - Wesley Ivan Hurt, Sep 01 2019

Prog

(PARI) a(n)=if(n%8==1, 1, n%8==6, -1, 0) \\ Charles R Greathouse IV, Jul 13 2016

Crossrefs

Sequence in context: A288673 A030213 A187969 * A370124 A238469 A288596

Adjacent sequences: A132148 A132149 A132150 * A132152 A132153 A132154

Keyword

sign,easy

Author

Paul Curtz, Nov 01 2007

Status

approved