%I A007976
%S A007976 1,2,5,16,61,275,1430,8506,57205
%N A007976 Generalized Euler numbers.
%D A007976 A. A. Kirillov, On the combinatorics of coadjoint orbits, Funct. Anal. 
               Applic., vol. 27 1992 pages 62-64.
%D A007976 A. A. Kirillov, Variations on the triangular theme, Amer. Math. Soc. 
               Transl., (2), Vol. 169, 1995, pp. 43-73, see p. 52.
%e A007976 a(7) is the number of conjugacy classes in a Borel subgroup of GL(7,2), 
               also the number of complex irreducible representations and is easily 
               computed by GAP to be 1430. - Dmitrii Pasechnik.
%Y A007976 Sequence in context: A138265 A000111 A163747 this_sequence A058259 A033543 
               A124531
%Y A007976 Adjacent sequences: A007973 A007974 A007975 this_sequence A007977 A007978 
               A007979
%K A007976 nonn,more
%O A007976 1,2
%A A007976 Alexandre Kirillov (kirillov(AT)math.upenn.edu)
%E A007976 a(7) corrected by Dmitrii Pasechnik (dima(AT)ntu.edu.sg), Mar 27 2008