OFFSET
0,2
LINKS
Colin Barker, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (11,-11,1).
FORMULA
a(n) = 18*A072256(n)-2, n>1. - R. J. Mathar, Jan 11 2009
a(n) = -2+3*(5-2*sqrt(6))^n*(3+sqrt(6))-3*(-3+sqrt(6))*(5+2*sqrt(6))^n for n>1. - Colin Barker, Mar 05 2016
MATHEMATICA
CoefficientList[Series[(1 + x)^4/(1 - 11*x + 11*x^2 - x^3), {x, 0, 20}], x] (* Wesley Ivan Hurt, Dec 27 2023 *)
PROG
(PARI) Vec((1+x)^4/(1-11*x+11*x^2-x^3) + O(x^25)) \\ Colin Barker, Mar 05 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 04 2004
STATUS
approved