0,1

a(n)=A136016 (8,35,80,) mod 9 . A136016 is linked to Lyman and Paschen spectra of hydrogen. - Paul Curtz, Oct 28 2008

Continued fraction expansion of 4+sqrt(17). - Bruno Berselli, Mar 15 2011

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

Tanya Khovanova, Recursive Sequences

INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 1016

Index to divisibility sequences

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

G.f.: 8/(1-x). - Bruno Berselli, Mar 15 2011

(PARI) a(n)=8 \\ Charles R Greathouse IV, Oct 07 2015

Sequence in context: A031176 A269350 A195139 * A048762 A201053 A160949

Adjacent sequences: A010728 A010729 A010730 * A010732 A010733 A010734

nonn,easy

N. J. A. Sloane.

approved