OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1)
FORMULA
a(n) = 81*A016780(n). - Michel Marcus, Nov 06 2015
From Ilya Gutkovskiy, Jun 16 2016: (Start)
G.f.: 81*(1 + 251*x + 1131*x^2 + 545*x^3 + 16*x^4)/(1 - x)^5.
a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5). (End)
MATHEMATICA
Table[(9n+3)^4, {n, 0, 100}] (* Mohammad K. Azarian, Jun 15 2016 *)
LinearRecurrence[{5, -10, 10, -5, 1}, {81, 20736, 194481, 810000, 2313441}, 20] (* Harvey P. Dale, May 26 2023 *)
PROG
(Magma) [(9*n+3)^4: n in [0..30]]; // Vincenzo Librandi, Jul 23 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved