Cat1List is a list containing data on all cat1-structures on groups
of size up to 47. The list is used by Cat1Select to construct these
small examples of cat1-groups.
gap> Length( Cat1List );
198
gap> Cat1List[8];
[ 6, 2, [ (1,2), (2,3) ], "s3",
[ [ [ (2,3), (2,3) ], "c3", "c2", [ (2,3), (2,3) ],
[ (2,3), (2,3) ] ] ] ]
GAP 3.4.4