A010728 Period 2: repeat (7,8).

7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 7

Offset

0,1

Links

Table of n, a(n) for n=0..80.

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

Formula

a(n) = -1/2*(-1)^n + 15/2. - Paolo P. Lava, Oct 27 2006

G.f. (-7-8*x) / ( (x-1)*(1+x) ). - R. J. Mathar, Nov 21 2011

Mathematica

PadRight[{}, 120, {7, 8}] (* Harvey P. Dale, Dec 15 2012 *)

Prog

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

Crossrefs

Cf. A176440.

Sequence in context: A364896 A233778 A217168 * A291509 A153856 A239362

Adjacent sequences: A010725 A010726 A010727 * A010729 A010730 A010731

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved