OFFSET
0,2
COMMENTS
Numbers that are divisible by all of 1,2,3,4,5,6,7.
LINKS
Erich Friedman, What's Special About This Number? (See the entry for "420")
Index entries for linear recurrences with constant coefficients, signature (2,-1).
FORMULA
a(n) = 420*n. - Wesley Ivan Hurt, Apr 11 2021
From Elmo R. Oliveira, Apr 16 2024: (Start)
G.f.: 420*x/(x-1)^2.
E.g.f.: 420*x*exp(x).
a(n) = 2*a(n-1) - a(n-2) for n >= 2.
MATHEMATICA
Range[0, 100]*420 (* Paolo Xausa, Apr 17 2024 *)
PROG
(PARI) a(n)=420*n \\ Charles R Greathouse IV, Apr 16 2024
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, May 30 2010
STATUS
approved