A010735 - OEIS

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A010735

Period 2: repeat (9,10).

3

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

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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