11T6 $M_{11}$ $7920$ $1$ no 12T272, 22T22
12T272 $M_{11}$ $7920$ $1$ no 11T6, 22T22
22T22 $M_{11}$ $7920$ $1$ no $M_{11}$ 11T6, 12T272
Results are complete for degrees $\leq 23$.