%I A002090 M2327 N0920
%S A002090 3,4,6,11,45,906,409182,83762797735
%N A002090 Related to Hamilton numbers.
%D A002090 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002090 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A002090 J. J. Sylvester, Collected Mathematical Papers, Vols. 1-4, Cambridge 
               Univ. Press, 1904-1912, Vol. 4, p. 551.
%H A002090 J. J. Sylvester, The collected mathematical papers of James Joseph Sylvester, 
               <a href="http://www.hti.umich.edu/cgi/t/text/text-idx?sid=b88432273f115fb346725f1a42422e19;
               c=umhistmath;idno=AAS8085.0002.001">vol. 2</a>, <a href="http://www.hti.umich.edu/
               cgi/t/text/text-idx?sid=b88432273f115fb346725f1a42422e19;c=umhistmath;
               idno=AAS8085.0003.001">vol. 3</a>, <a href="http://www.hti.umich.edu/
               cgi/t/text/text-idx?sid=b88432273f115fb346725f1a42422e19;c=umhistmath;
               idno=AAS8085.0004.001">vol. 4</a>.
%Y A002090 Sequence in context: A093040 A022935 A048229 this_sequence A062822 A175029 
               A113728
%Y A002090 Adjacent sequences: A002087 A002088 A002089 this_sequence A002091 A002092 
               A002093
%K A002090 nonn
%O A002090 1,1
%A A002090 N. J. A. Sloane (njas(AT)research.att.com).