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A010708 Period 2: repeat (3,10). 2
3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Continued fraction expansion of A176109.

LINKS

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

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

FORMULA

a(n)=-7/2*(-1)^n+13/2 =10*(n mod 2)+3*[(n+1) mod 2] - Paolo P. Lava, Oct 20 2006

G.f. (3+10x)/((1-x)(1+x)). - R. J. Mathar, Nov 21 2011

MATHEMATICA

PadRight[{}, 100, {3, 10}] (* Harvey P. Dale, Oct 31 2015 *)

PROG

(PARI) a(n)=3+n%2*7 \\ Charles R Greathouse IV, Dec 21 2011

CROSSREFS

Sequence in context: A091043 A321118 A167790 * A072988 A170855 A320583

Adjacent sequences:  A010705 A010706 A010707 * A010709 A010710 A010711

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 21 21:14 EDT 2019. Contains 325199 sequences. (Running on oeis4.)