OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..2000
Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).
FORMULA
From Amiram Eldar, Mar 28 2022: (Start)
Sum_{n>=0} 1/a(n) = PolyGamma(3, 1/6)/7776. (End)
MATHEMATICA
(6Range[0, 30]+1)^4 (* Harvey P. Dale, May 18 2011 *)
PROG
(Magma) [(6*n+1)^4: n in [0..50]]; // Vincenzo Librandi, May 04 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved