OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).
FORMULA
From Amiram Eldar, Mar 31 2022: (Start)
a(n) = 2^8*A016796(n).
Sum_{n>=0} 1/a(n) = PolyGamma(7, 2/3)/8465264640. (End)
MATHEMATICA
(6*Range[0, 20]+4)^8 (* or *) LinearRecurrence[{9, -36, 84, -126, 126, -84, 36, -9, 1}, {65536, 100000000, 4294967296, 54875873536, 377801998336, 1785793904896, 6553600000000, 20047612231936, 53459728531456}, 20] (* Harvey P. Dale, Dec 26 2018 *)
PROG
(Magma) [(6*n+4)^8: n in [0..20]]; // Vincenzo Librandi, May 07 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved