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, 0, 0, 0, 0, 10402, 0, 0, 0, 0, 0, 0, 0, -1).
FORMULA
G.f.: -(x^14 -x^13 +2*x^12 -5*x^11 +32*x^10 -69*x^9 +101*x^8 -170*x^7 -101*x^6 -69*x^5 -32*x^4 -5*x^3 -2*x^2 -x -1) / ((x^4 -10*x^2 -1)*(x^4 +10*x^2 -1)*(x^8 +102*x^4 +1)). - Colin Barker, Dec 23 2013
a(n) = 10402*a(n-8) - a(n-16) for n>15. - Vincenzo Librandi, Jan 30 2014
MATHEMATICA
Denominator/@Convergents[Sqrt[936], 30] (* Harvey P. Dale, Apr 18 2011 *)
PROG
(Magma) I:=[1, 1, 2, 5, 32, 69, 101, 170, 10301, 10471, 20772, 52015, 332862, 717739, 1050601, 1768340]; [n le 16 select I[n] else 10402*Self(n-8)-Self(n-16): n in [1..30]]; // Vincenzo Librandi, Jan 30 2014
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Dec 23 2013
STATUS
approved