OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,54,0,-1).
FORMULA
G.f.: -(x+1)*(x^2-14*x-13) / (x^4-54*x^2+1). - Colin Barker, Nov 06 2013
a(0)=13, a(1)=27, a(2)=715, a(3)=1457, a(n)=54*a(n-2)-a(n-4). - Harvey P. Dale, Mar 27 2015
MATHEMATICA
Numerator[Convergents[Sqrt[182], 30]] (* Vincenzo Librandi, Nov 01 2013 *)
LinearRecurrence[{0, 54, 0, -1}, {13, 27, 715, 1457}, 30] (* Harvey P. Dale, Mar 27 2015 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 06 2013
STATUS
approved