The generator matrix

 1  0  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  a a+1  0 2a+3  a a+1  1  0  a 2a+3 a+1  2  2 a+2 3a  2 3a+2  0  a  2
 0  0 2a+2  0  2  0  2 2a 2a 2a 2a  2 2a+2 2a+2 2a+2  2 2a+2 2a 2a  2 2a 2a 2a+2
 0  0  0  2 2a 2a  0 2a  2  2  0  2 2a  2  0 2a+2  2 2a+2  2 2a 2a  0  2

generates a code of length 23 over GR(16,4) who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+99x^60+108x^61+48x^63+486x^64+144x^65+288x^67+867x^68+264x^69+432x^71+933x^72+144x^73+129x^76+108x^77+33x^80+9x^84+3x^88

The gray image is a code over GF(4) with n=92, k=6 and d=60.
This code was found by Heurico 1.16 in 0.028 seconds.