A010735 Period 2: repeat (9,10).

9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10

Offset

0,1

Comments

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

Links

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

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

Formula

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

Mathematica

Table[9 + Mod[n, 2], {n, 0, 50}] (* Jinyuan Wang, Feb 26 2020 *)
PadRight[{}, 70, {9, 10}] (* Harvey P. Dale, Sep 23 2021 *)

Prog

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

Crossrefs

Sequence in context: A020508 A158001 A157763 * A063543 A096166 A240919

Adjacent sequences: A010732 A010733 A010734 * A010736 A010737 A010738

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved