7:3
AtlasStabilizer( "L3(2)", "L27G1-p8B0" )
AtlasSubgroup( "L3(2)", 3 )
PrimitiveGroup( 7, 3 )
SmallGroup( 21, 1 )
TransitiveGroup( 7, 3 )
TransitiveGroup( 21, 2 )
File created automatically by GAP on 6-May-2025.