A010732 (17-(-1)^n)/2.

8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9, 8

Offset

0,1

Links

Table of n, a(n) for n=0..80.

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

Formula

Period 2.

G.f.: (-8-9*x) / ((x-1)*(1+x)). - R. J. Mathar, Nov 21 2011

a(n) = 8 + (n mod 2) = 9 - ((n+1) mod 2) = (2 + (n mod 2))^(2 + ((n+1) mod 2)). - Wesley Ivan Hurt, Apr 16 2014

Maple

A010732:=n->(17-(-1)^n)/2; seq(A010732(n), n=0..100); # Wesley Ivan Hurt, Apr 16 2014

Mathematica

Table[(17 - (-1)^n)/2, {n, 0, 100}] (* Wesley Ivan Hurt, Apr 16 2014 *)

Prog

(PARI) a(n)=(17-(-1)^n)/2 \\ Charles R Greathouse IV, Oct 07 2015

Crossrefs

Sequence in context: A216699 A011010 A019606 * A235398 A244959 A345987

Adjacent sequences: A010729 A010730 A010731 * A010733 A010734 A010735

Keyword

nonn,easy

Author

N. J. A. Sloane, Dec 11 1996

Status

approved