The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  X  X  X  X  X  X  X  X  X  X  X  X  X  X  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  1
 0  2  0  0  0  0  0  0  0  2  2  2  2  2  2  2  0  0  0  0  0  2  2  2  2  0  0  2  2  0  2  2  0  0  0  0  2  2  0  2  2  0  0  2  2  0  2  2
 0  0  2  0  0  0  2  2  2  2  2  0  2  2  0  0  0  0  0  2  2  2  2  0  0  0  2  2  0  2  2  0  0  0  0  2  2  0  2  2  0  2  2  2  2  0  0  0
 0  0  0  2  0  2  2  2  0  0  0  0  2  2  2  2  0  0  2  2  0  0  2  2  0  2  2  0  0  0  2  2  0  2  2  2  0  2  2  2  0  0  0  0  2  0  2  0
 0  0  0  0  2  2  0  2  2  0  2  2  2  0  0  2  0  2  2  0  0  0  0  2  2  0  2  2  0  2  2  0  2  2  0  0  0  0  2  2  0  2  0  2  0  0  2  2

generates a code of length 48 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+124x^48+3x^64

The gray image is a code over GF(2) with n=192, k=7 and d=96.
This code was found by Heurico 1.16 in 0.037 seconds.