The generator matrix

 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  1  1  1  2  2  1  1  1  2  1  1  1  1  1  1  2  2  1  1  2  1  2  2  1  1  2  1  1  1  1
 0  2  0  0  0  0  0  0  0  0  0  2  0  0  2  2  0  0  0  0  2  2  2  2  0  2  2  0  2  2  2  2  0  2  0  0  0  2  0  2  0  0  0  2  0  0  0  2  2  2  2  2  0  2  2  0  2
 0  0  2  0  0  0  0  0  0  0  0  2  2  2  2  2  0  0  0  2  2  0  0  0  0  0  0  2  2  0  0  2  2  2  0  2  0  2  2  2  0  0  2  0  2  2  2  2  0  0  0  0  0  0  0  2  2
 0  0  0  2  0  0  0  0  0  0  2  0  2  2  0  2  2  0  2  0  2  2  2  2  0  2  0  2  0  0  2  2  0  2  2  2  2  0  0  2  0  0  0  0  2  2  0  2  0  2  0  2  0  0  0  0  2
 0  0  0  0  2  0  0  0  0  0  2  0  0  2  2  2  2  2  0  2  0  0  0  0  0  2  2  0  2  2  2  0  0  2  0  2  2  0  2  0  0  0  2  0  0  2  0  0  0  0  2  2  2  2  0  2  0
 0  0  0  0  0  2  0  0  0  2  0  0  0  2  2  0  2  0  2  2  2  0  0  2  0  2  2  2  2  2  0  2  2  2  2  0  2  2  0  2  0  2  0  0  0  2  2  0  0  2  2  2  2  0  0  0  0
 0  0  0  0  0  0  2  0  0  2  0  0  2  0  0  2  2  2  0  2  2  0  2  2  0  0  2  0  0  0  2  0  2  2  2  0  0  2  0  2  2  0  2  0  0  2  0  2  0  0  2  2  2  0  2  2  0
 0  0  0  0  0  0  0  2  0  2  2  2  2  0  0  0  0  0  2  2  2  2  2  0  2  2  0  2  2  2  0  0  0  0  0  0  2  2  0  2  0  2  2  0  2  0  2  0  2  2  2  0  0  2  2  2  0
 0  0  0  0  0  0  0  0  2  2  2  2  0  0  2  2  2  0  0  0  2  0  0  0  2  0  2  0  0  2  0  0  2  2  0  2  0  0  0  0  2  0  0  2  2  2  2  2  0  2  2  2  0  2  0  2  2

generates a code of length 57 over Z4 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+87x^48+10x^50+155x^52+80x^54+231x^56+132x^58+149x^60+32x^62+79x^64+2x^66+45x^68+17x^72+3x^76+1x^96

The gray image is a code over GF(2) with n=114, k=10 and d=48.
This code was found by Heurico 1.16 in 0.229 seconds.