T
| T |
A 5
2 2 ⋅ 3 ⋅ 5
A 6
2 3 ⋅ 3 2 ⋅ 5
PSL ( 2 , 7 )
2 3 ⋅ 3 ⋅ 7
PSL ( 2 , 8 )
PSU ( 3 , 3 )
2 5 ⋅ 3 3 ⋅ 7
PSL ( 3 , 3 )
2 4 ⋅ 3 3 ⋅ 13
PSL ( 2 , 17 )
2 4 ⋅ 3 2 ⋅ 17