OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (10,-45,120,-210,252,-210,120,-45,10,-1).
MATHEMATICA
(3*Range[0, 20])^9 (* Paolo Xausa, Dec 12 2025 *)
PROG
(Magma) [(3*n)^9: n in [0..20]]; // Vincenzo Librandi, May 09 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved