insol3_2:= [ 
    MatrixGroup<3, GF(2) |
        \[ 0, 1, 0, 0, 0, 1, 1, 1, 0 ],
        \[ 1, 0, 0, 0, 0, 1, 0, 1, 0 ]
        /* order = 168 = 2^3 * 3 * 7 */ >
];