OFFSET
0,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (7,-21,35,-35,21,-7,1).
FORMULA
From Amiram Eldar, Mar 31 2022: (Start)
Sum_{n>=0} 1/a(n) = PolyGamma(5, 2/3)/87480. (End)
MAPLE
MATHEMATICA
(3Range[0, 20]+2)^6 (* Harvey P. Dale, Mar 04 2011 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved