OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..3000
Index entries for linear recurrences with constant coefficients, signature (6,-15,20,-15,6,-1).
FORMULA
From Amiram Eldar, Mar 31 2022: (Start)
a(n) = A016957(n)^5.
a(n) = 32*A016793(n).
Sum_{n>=0} 1/a(n) = 121*zeta(5)/7776 - Pi^5/(11664*sqrt(3)). (End)
MATHEMATICA
a[n_] := (6*n + 4)^5; Array[a, 20, 0] (* Amiram Eldar, Mar 31 2022 *)
PROG
(Magma) [(6*n+4)^5: n in [0..30]]; // Vincenzo Librandi, May 06 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved