OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,238142,0,0,0,0,0,0,0,-1).
FORMULA
G.f.: -(x^14 -4*x^13 +17*x^12 -21*x^11 +227*x^10 -248*x^9 +1219*x^8 -5124*x^7 -1219*x^6 -248*x^5 -227*x^4 -21*x^3 -17*x^2 -4*x -1) / ((x^8 -488*x^4 +1)*(x^8 +488*x^4 +1)). - Colin Barker, Nov 29 2013
a(n) = 238142*a(n-8) - a(n-16). - Wesley Ivan Hurt, Sep 05 2022
MATHEMATICA
Denominator[Convergents[Sqrt[540], 30]] (* Vincenzo Librandi, Jan 12 2014 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 29 2013
STATUS
approved