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%I #15 Jun 14 2024 22:31:08
%S 50027557148216524800,6762844700608770238252960972800,
%T 5081732431326820541485324550799360000000,
%U 3246978048053003424316406250000000000000000000,14630778277213500974314928221817819519899234908241920000
%N Order of simple Chevalley group D_6(q), q = prime power.
%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) = d(A000961(n+1),6) where d(q,n) is defined in A003837. - _Sean A. Irvine_, Sep 17 2015
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_
%E a(5) from _Sean A. Irvine_, Sep 17 2015