A003921 - OEIS

%I #10 Jun 14 2024 22:31:09

%S 60,979200,4106059776000,4408780839651901440000,

%T 1211875293642881119668928512000000,

%U 85278137430613949474674174708223909560320000000

%N Order of universal Chevalley group B_n (4).

%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(4,n) where B(q,n) is defined in A003920. - _Sean A. Irvine_, Sep 22 2015

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_