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, 0, 0, 0, 1).
FORMULA
From R. J. Mathar, Feb 06 2011: (Start)
a(n) = a(n-12).
G.f.: (-1-2*x-4*x^2-8*x^3-16*x^4-32*x^5-19*x^6-38*x^7-31*x^8 -17*x^9 -34*x^10-23*x^11 ) / ( (x-1)*(1+x+x^2)*(1+x)*(1-x+x^2)*(1+x^2)*(x^4-x^2+1) ). (End)
MATHEMATICA
PowerMod[2, Range[0, 50], 45] (* G. C. Greubel, Mar 11 2016 *)
PROG
(PARI) a(n)=lift(Mod(2, 45)^n) \\ Charles R Greathouse IV, Mar 22 2016
(GAP) List([0..79], n->PowerMod(2, n, 45)); # Muniru A Asiru, Jan 30 2019
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, May 12 2002
STATUS
approved