Finite Simple Groups of Lie-Type of Orders 14, 52, 78, 133, and 248. They are denoted , , , , , , ,, .
See also Chevalley Groups, Finite Group, Simple Group, Tits Group
References
Wilson, R. A. ``ATLAS of Finite Group Representation.''
http://for.mat.bham.ac.uk/atlas/html/contents.html#twi.