The generator matrix

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

generates a code of length 48 over Z4 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+108x^40+198x^42+341x^44+276x^46+312x^48+230x^50+249x^52+162x^54+110x^56+28x^58+25x^60+2x^62+5x^64+1x^68

The gray image is a code over GF(2) with n=96, k=11 and d=40.
This code was found by Heurico 1.16 in 0.413 seconds.