OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..424
MATHEMATICA
Range[0, 15]! CoefficientList[ Series[ 9x/(1 + Exp[x] + Exp[ 2x] + Exp[ 3x] + Exp[ 4x] + Exp[ 5x] + Exp[ 6x] + Exp[ 7x] + Exp[ 8x]), {x, 0, 15}], x] (* Robert G. Wilson v, Oct 26 2012 *)
Table[Sum[9^k BernoulliB[k]Binomial[n, k], {k, 0, n-1}], {n, 0, 20}] (* Harvey P. Dale, Apr 13 2016 *)
PROG
(PARI) a(n)=sum(k=0, n-1, 9^k*binomial(n, k)*bernfrac(k))
CROSSREFS
KEYWORD
sign
AUTHOR
Benoit Cloitre, May 31 2003
EXTENSIONS
Offset changed to 0 by Seiichi Manyama, Sep 28 2016
STATUS
approved