%I A006568 M3046
%S A006568 1,3,18,90,270,1134,5670,2430,7290,133650,112266,1990170,9950850,
%T A006568 2296350,984150
%N A006568 Denominators of generalized Bernoulli numbers.
%D A006568 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006568 F. T. Howard, A sequence of numbers related to the exponential function, 
               Duke Math. J., 34 (1967), 599-615.
%H A006568 <a href="Sindx_Be.html#Bernoulli">Index entries for sequences related 
               to Bernoulli numbers.</a>
%H A006568 Hector Blandin and Rafael Diaz, <a href="http://arXiv.org/pdf/0708.0809">
               Compositional Bernoulli numbers</a>, Page 7, 2nd table is identical 
               to A006569/A006568.
%H A006568 Abdul Hassen and Hieu D. Nguyen, <a href="http://arXiv.org/pdf/math/0509637">
               Hypergeometric Zeta Functions</a>, Sep 27 2005.
%Y A006568 Cf. A006569.
%Y A006568 Cf. A132092-A132106.
%Y A006568 Sequence in context: A119424 A037295 A124811 this_sequence A147518 A088336 
               A133594
%Y A006568 Adjacent sequences: A006565 A006566 A006567 this_sequence A006569 A006570 
               A006571
%K A006568 nonn,frac
%O A006568 0,2
%A A006568 N. J. A. Sloane (njas(AT)research.att.com).