OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1).
FORMULA
G.f.: ( 1 + 996*x + 2865*x^2 + 512*x^3 ) / (x-1)^4. - R. J. Mathar, Jul 14 2016
MATHEMATICA
(9 Range[0, 30] + 1)^3 (* Wesley Ivan Hurt, Jan 01 2024 *)
PROG
(Magma) [(9*n+1)^3: n in [0..40]]; // Vincenzo Librandi, Aug 30 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved