OFFSET
0,3
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, -5, 0, -19, 0, 25).
FORMULA
G.f.: (1-x+10*x^2+6*x^3+21*x^4-5*x^5)/(1-x^2)/(1+6*x^2+25*x^4).
MATHEMATICA
LinearRecurrence[{0, -5, 0, -19, 0, 25}, {1, -1, 5, 11, -23, -41}, 33] (* Jean-François Alcover, Apr 08 2024 *)
PROG
(PARI) {a(n)=polcoeff((1-x+10*x^2+6*x^3+21*x^4-5*x^5)/(1-x^2)/(1+6*x^2+25*x^4+x*O(x^n)), n)}
CROSSREFS
KEYWORD
sign
AUTHOR
Paul D. Hanna, Apr 28 2006
STATUS
approved