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A010715 Period 2: repeat (4,10). 2
4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10, 4, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Continued fraction of 2+sqrt(110)/5 = A176220. - R. J. Mathar, Nov 21 2011

LINKS

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

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

FORMULA

a(n)=-3*(-1)^n+7; a(n)=10*(n mod 2)+4*[(n+1) mod 2] - Paolo P. Lava, Oct 20 2006

G.f. ( -4-10*x ) / ((x-1)*(1+x)). - R. J. Mathar, Nov 21 2011

PROG

(PARI) a(n)=n%2*6+4 \\ Charles R Greathouse IV, Jul 13 2016

CROSSREFS

Sequence in context: A054048 A121512 A291527 * A151707 A059132 A059136

Adjacent sequences:  A010712 A010713 A010714 * A010716 A010717 A010718

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 23 11:44 EDT 2019. Contains 325254 sequences. (Running on oeis4.)