OFFSET
0,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (20, -190, 1140, -4845, 15504, -38760, 77520, -125970, 167960, -184756, 167960, -125970, 77520, -38760, 15504, -4845, 1140, -190, 20, -1).
FORMULA
a(n) is a totally multiplicative sequence (and is therefore multiplicative as well). - Jaroslav Krizek, Nov 01 2009
From Ilya Gutkovskiy, Feb 27 2017: (Start)
Dirichlet g.f.: zeta(s-19).
Sum_{n>=1} 1/a(n) = zeta(19) = A013677. (End)
Sum_{n>=1} (-1)^(n+1)/a(n) = 262143*zeta(19)/262144. - Amiram Eldar, Oct 09 2020
MAPLE
MATHEMATICA
Range[0, 20]^19 (* Wesley Ivan Hurt, Jul 13 2014 *)
PROG
(Magma) [n^19: n in [0..15]]; // Vincenzo Librandi, Jun 19 2011
(Haskell)
a010807 = (^ 19) -- Reinhard Zumkeller, Sep 29 2014
CROSSREFS
KEYWORD
nonn,mult,easy
AUTHOR
STATUS
approved