OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (0,152,0,-1).
FORMULA
a(n) = 152*a(n-2)-a(n-4). G.f.: -(x^3 - 15*x^2 - 76*x - 15)/(x^4-152*x^2+1). [Colin Barker, Jul 15 2012]
MATHEMATICA
CoefficientList[Series[- (x^3 - 15 x^2 - 76 x - 15)/(x^4 - 152 x^2 + 1), {x, 0, 20}], x] (* Vincenzo Librandi, Oct 27 2013 *)
LinearRecurrence[{0, 152, 0, -1}, {15, 76, 2295, 11551}, 20] (* Harvey P. Dale, Mar 06 2023 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
STATUS
approved