OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..250
MATHEMATICA
Denominator[BernoulliB[Range[0, 20], 1/7]] (* Harvey P. Dale, Jan 03 2014 *)
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Nov 08 2009
STATUS
approved