The generator matrix

 1  0  0  0  1  1  1  0  1  1  1  1  2  0  1  1  1  2  1  2  1  2  1  2  1  2  1  2  2  0  1  2  1  2  1  0  2  1  1  1  2  0  2  1  2  2  1  1  1  1  1  1  1  1  1  2  0  1  1
 0  1  0  0  0  1  1  1  2  0  3  1  1  1  1  3  0  0  2  1  2  1  0  2  2  1  2  0  1  1  1  1  1  0  0  1  1  3  2  2  1  1  1  3  1  2  2  3  2  3  2  2  2  2  3  2  1  0  2
 0  0  1  0  1  1  0  1  0  3  2  1  2  3  0  1  3  1  0  1  0  0  2  0  1  1  1  1  0  2  1  1  3  1  0  1  2  1  1  3  0  2  2  0  2  1  1  2  3  2  2  2  2  2  1  1  1  3  2
 0  0  0  1  1  0  1  1  1  0  2  3  3  2  1  0  0  3  1  2  0  1  2  1  0  1  3  3  2  2  0  2  3  1  3  1  2  3  1  1  1  1  1  1  1  2  3  3  0  0  0  2  1  1  0  1  3  2  1
 0  0  0  0  2  0  0  0  0  2  0  2  2  2  2  2  2  0  0  0  2  0  0  0  0  0  0  2  2  2  2  0  0  0  0  2  2  2  0  2  0  2  0  2  2  0  2  0  2  0  2  2  0  2  0  0  2  0  0
 0  0  0  0  0  2  0  0  0  0  0  0  2  2  2  2  2  2  2  0  0  2  0  0  2  2  2  2  0  2  2  0  0  2  0  0  2  2  0  0  2  0  0  2  0  2  2  2  0  0  0  2  2  0  2  2  0  2  2
 0  0  0  0  0  0  2  0  0  0  2  2  0  0  0  0  2  0  0  0  2  2  2  2  2  0  0  0  0  0  0  2  2  2  2  2  2  0  2  0  2  0  2  2  2  0  2  2  2  0  0  0  0  0  2  2  0  2  2
 0  0  0  0  0  0  0  2  0  0  0  0  0  0  0  0  0  2  2  2  2  2  2  2  0  0  2  2  0  2  2  2  2  2  0  2  0  2  0  2  0  0  2  2  0  0  2  0  0  0  2  2  0  0  2  2  0  0  2

generates a code of length 59 over Z4 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+226x^50+379x^52+466x^54+527x^56+517x^58+511x^60+453x^62+417x^64+293x^66+181x^68+80x^70+23x^72+11x^74+9x^76+1x^78+1x^82

The gray image is a code over GF(2) with n=118, k=12 and d=50.
This code was found by Heurico 1.16 in 31.7 seconds.