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%I #13 Jun 14 2024 22:31:09
%S 336,276595200,546914437209907200,2596509480922336727312302080000,
%T 29597339316082819652234687848790174733434880000,
%U 810042101621990387485449491667484171676631766280916065845248000000
%N Order of universal Chevalley group B_n (7).
%D J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985 [for best online version see https://oeis.org/wiki/Welcome#Links_to_Other_Sites], p. xvi.
%D H. S. M. Coxeter and W. O. J. Moser, Generators and Relations for Discrete Groups, 4th ed., Springer-Verlag, NY, reprinted 1984, p. 131.
%F a(n) = B(7,n) where B(q,n) is defined in A003920. - _Sean A. Irvine_, Sep 22 2015
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
%E a(6) from _Sean A. Irvine_, Sep 22 2015