OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,178,0,0,0,-1).
FORMULA
From Colin Barker, Jul 16 2012: (Start)
a(n) = 178*a(n-4) - a(n-8).
G.f.: -(x^7-14*x^6+15*x^5-74*x^4-89*x^3-74*x^2-15*x-14)/(x^8-178*x^4+1). (End)
MATHEMATICA
Numerator/@Convergents[Sqrt[220], 25] (* Harvey P. Dale, May 15 2011 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
STATUS
approved