The generator matrix

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

generates a code of length 29 over GR(64,4) who´s minimum homogenous weight is 192.

Homogenous weight enumerator: w(x)=1x^0+2954x^192+1792x^196+5768x^200+12544x^204+9604x^208+42x^216+49x^224+14x^232

The gray image is a code over GF(8) with n=232, k=5 and d=192.
This code was found by Heurico 1.16 in 0.0876 seconds.