%I A098788
%S A098788 1,2,2,4,8,15,27,47,85,153,268,466,818,1430,2475,4273,7377,12701,
%T A098788 21786,37282,63719,108719,185085,314537,533861,904861,1531370,
%U A098788 2588298,4369783,7369174,12413458,20889007,35118175,58986118
%N A098788 Stable Poincare series for Lie group of type A (i.e. the variety of complex 
               nonsingular k X k matrices with distinct eigenvalues).
%C A098788 Lehrer-Segal give a recurrence; both this reference and the Lehrer article 
               give the first 50 terms.
%D A098788 G. I. Lehrer and G. B. Segal, Homology stability for classical regular 
               semisimple varieties, Math. Zeit., 236 (2001), 251-290; p. 286.
%H A098788 G. I. Lehrer, <a href="a098787.pdf">Some sequences arising at the interface 
               of representation theory and homotopy theory</a>
%Y A098788 Cf. A098787, A098789, A098705.
%Y A098788 Sequence in context: A042979 A000018 A075126 this_sequence A153999 A154002 
               A154005
%Y A098788 Adjacent sequences: A098785 A098786 A098787 this_sequence A098789 A098790 
               A098791
%K A098788 nonn,easy,nice
%O A098788 0,2
%A A098788 N. J. A. Sloane (njas(AT)research.att.com), Oct 28 2004