OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (2,1,8,-6)
FORMULA
G.f.: -(x-1)/((3*x-1)*(2*x^3-2*x^2-x-1)).
MATHEMATICA
LinearRecurrence[{2, 1, 8, -6}, {1, 1, 3, 15}, 30] (* Harvey P. Dale, Aug 08 2021 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Oct 21 2017
STATUS
approved