OFFSET
0,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,0,0,1566,0,0,0,-1).
FORMULA
G.f.: -(x^2-x-1)*(x^4+28*x^2+1) / (x^8-1566*x^4+1). - Colin Barker, Dec 16 2013
a(0)=1, a(1)=1, a(2)=27, a(3)=28, a(4)=1539, a(5)=1567, a(6)=42281, a(7)=43848, a(n)=1566*a(n-4)-a(n-8). - Harvey P. Dale, Jun 20 2015
MATHEMATICA
Denominator[Convergents[Sqrt[782], 30]] (* Vincenzo Librandi, Jan 23 2014 *)
LinearRecurrence[{0, 0, 0, 1566, 0, 0, 0, -1}, {1, 1, 27, 28, 1539, 1567, 42281, 43848}, 30] (* Harvey P. Dale, Jun 20 2015 *)
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 16 2013
STATUS
approved