OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (10,-45,120,-210,252,-210,120,-45,10,-1).
FORMULA
a(n) = 512*A016845(n). - R. J. Mathar, Aug 26 2015
From Amiram Eldar, Apr 26 2023: (Start)
a(n) = A017137(n)^9.
Sum_{n>=0} 1/a(n) = 511*zeta(9)/524288 - 277*Pi^9/8455716864. (End)
MATHEMATICA
(8*Range[0, 20]+6)^9 (* or *) LinearRecurrence[{10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {10077696, 20661046784, 1207269217792, 19683000000000, 165216101262848, 922190162669056, 3904305912313344, 13537086546263552, 40353607000000000, 106868920913284608}, 20] (* Harvey P. Dale, Jun 04 2016 *)
PROG
(Magma) [(8*n+6)^9: n in [0..20]]; // Vincenzo Librandi, Jul 21 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved