OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,302,0,0,0,0,0,-1).
FORMULA
a(n) = 302*a(n-6)-a(n-12). G.f.: -(x^11-7*x^10+8*x^9-15*x^8+68*x^7-83*x^6-151*x^5-83*x^4-68*x^3-15*x^2-8*x-7)/(x^12-302*x^6+1). [Colin Barker, Jul 18 2012]
MATHEMATICA
Numerator[Convergents[Sqrt[57], 30]] (* Vincenzo Librandi, Oct 25 2013 *)
LinearRecurrence[{0, 0, 0, 0, 0, 302, 0, 0, 0, 0, 0, -1}, {7, 8, 15, 68, 83, 151, 2197, 2348, 4545, 20528, 25073, 45601}, 30] (* Harvey P. Dale, Jul 22 2016 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
STATUS
approved