OFFSET
0,3
LINKS
Vincenzo Librandi, 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, 0, 0, 0, 1).
FORMULA
From R. J. Mathar, Jun 28 2011: (Start)
a(n) = a(n-15).
G.f.: -x*(1 +2*x +3*x^2 +4*x^3 +5*x^4 +6*x^5 +7*x^6 +8*x^7 +9*x^8 +10*x^9 +11*x^10 +12*x^11 +13*x^12 +14*x^13) / ( (x-1)*(1+x^4+x^3+x^2+x)*(1+x+x^2)*(1-x+x^3-x^4+x^5-x^7+x^8) ). (End)
MATHEMATICA
Table[Mod[n, 15], {n, 0, 50}] (* G. C. Greubel, Jun 13 2016 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Zerinvary Lajos, Nov 04 2009
STATUS
approved