0,1

Continued fraction expansion of A176523. - R. J. Mathar, Mar 08 2012

Table of n, a(n) for n=0..65.

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

a(n)=-1/2*(-1)^n+19/2 =10*(n mod 2)+9*[(n+1) mod 2] - Paolo P. Lava, Oct 27 2006

G.f. ( -9-10*x ) / ( (x-1)*(1+x) ). - R. J. Mathar, Nov 21 2011

(PARI) a(n)=n%2+9 \\ Charles R Greathouse IV, Jul 13 2016

Sequence in context: A020508 A158001 A157763 * A063543 A096166 A240919

Adjacent sequences: A010732 A010733 A010734 * A010736 A010737 A010738

nonn,easy

N. J. A. Sloane.

approved