OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (7,-21,35,-35,21,-7,1).
FORMULA
From G. C. Greubel, Oct 17 2023: (Start)
G.f.: (729 + 994897*x + 17152878*x^2 + 43114478*x^3 + 21697313*x^4 + 1742889*x^5 + 4096*x^6)/(1-x)^7.
E.g.f.: (729 + 999271*x + 11069149*x^2 + 20281590*x^3 + 10996580*x^4 + 2067261*x^5 + 117649*x^6)*exp(x). (End)
MATHEMATICA
(7*Range[0, 40] +3)^6 (* G. C. Greubel, Oct 17 2023 *)
PROG
(Magma) [(7*n+3)^6: n in [0..35]]; // Vincenzo Librandi, Jul 14 2011
(SageMath) [(7*n+3)^6 for n in range(41)] # G. C. Greubel, Oct 17 2023
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved