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

generates a code of length 57 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+19x^52+17x^54+27x^56+384x^57+27x^58+17x^60+19x^62+1x^114

The gray image is a code over GF(2) with n=228, k=9 and d=104.
This code was found by Heurico 1.16 in 0.0942 seconds.