%I #11 Jun 14 2024 22:31:09
%S 229597439051324561817600,14636855916969695633965120680532377600,
%T 85696576147617709485896772387584983695360000000,
%U 3177180118884729605172792434692382812500000000000000000
%N Order of universal twisted Chevalley group 2_E_6 (q), q = prime power.
%D R. W. Carter, Simple Groups of Lie Type, Wiley 1972 p 262.
%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.
%p q^36*(q^12-1)*(q^9+1)*(q^8-1)*(q^6-1)*(q^5+1)*(q^2-1);
%Y Cf. A178798.
%K nonn
%O 1,1
%A _N. J. A. Sloane_.