OFFSET
0,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,1). [R. J. Mathar, Apr 20 2010]
FORMULA
From R. J. Mathar, Apr 20 2010: (Start)
a(n) = a(n-9).
G.f.: ( -1-6*x-17*x^2-7*x^3-4*x^4-5*x^5-11*x^6-9*x^7-16*x^8 ) / ( (x-1)*(1+x+x^2)*(x^6+x^3+1) ). (End)
MATHEMATICA
PowerMod[6, Range[0, 50], 19] (* G. C. Greubel, Mar 18 2016 *)
PROG
(Sage) [power_mod(6, n, 19)for n in range(0, 89)] # Zerinvary Lajos, Nov 27 2009
(PARI) a(n) = lift(Mod(6, 19)^n); \\ Altug Alkan, Mar 18 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, May 12 2002
STATUS
approved