OFFSET
0,3
LINKS
Index entries for linear recurrences with constant coefficients, signature (9,-27,27).
FORMULA
G.f.: x*(1 + 5*x)/(1 - 3*x)^3.
E.g.f.: exp(3*x)*x*(1 + 4*x). - Stefano Spezia, Oct 09 2022
MATHEMATICA
LinearRecurrence[{9, -27, 27}, {0, 1, 14}, 30] (* Harvey P. Dale, Apr 10 2023 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jul 24 2003
STATUS
approved