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  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  2  0  0  0  0  0  0  0  2  2  2  2  0  0  0  0  2  2  0  0  2  2  0  2  2  0  0  2  0  0  0  0  0  2  2  2  2  0  0  2  2  2  0  0  2  2  2  0  2  2  0  0  0
 0  0  2  0  0  0  0  0  2  2  2  0  2  0  2  0  2  2  0  0  0  0  0  2  2  0  0  2  2  0  2  2  0  2  2  0  2  0  0  2  2  0  0  0  2  2  2  0  2  2  0  0  0  0
 0  0  0  2  0  0  0  0  2  0  2  2  2  0  0  2  2  0  0  0  2  2  0  2  0  0  2  2  0  0  2  2  2  0  0  2  2  0  2  0  0  2  0  2  2  2  2  2  2  2  2  2  0  0
 0  0  0  0  2  0  0  0  2  2  0  2  0  2  0  2  0  0  2  2  2  0  0  0  2  2  0  0  2  2  0  2  2  2  0  0  2  2  2  2  0  0  0  0  2  2  2  2  2  2  2  2  0  0
 0  0  0  0  0  2  0  2  0  0  2  2  0  2  0  0  2  0  2  2  2  0  0  2  2  0  2  0  0  0  0  0  2  2  2  2  0  0  0  0  2  2  2  2  2  0  2  0  2  2  0  0  0  0
 0  0  0  0  0  0  2  2  0  0  0  2  2  0  2  0  2  2  0  2  0  0  2  0  0  2  0  2  2  2  0  2  2  2  2  2  0  0  2  2  0  0  0  2  0  2  2  2  2  0  0  2  0  0

generates a code of length 54 over Z4 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+25x^48+38x^52+128x^54+38x^56+25x^60+1x^108

The gray image is a code over GF(2) with n=108, k=8 and d=48.
This code was found by Heurico 1.16 in 0.0335 seconds.