The generator matrix

 1  0  1  1  1  1  1  1  1  1  0  1  1  1  X  1  1  1  1  X  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  a a^2*X+a^2  0 a^2*X+1 a^2*X+a^2  X  a  1 a^2*X+1 X+a a*X+a^2  1  X  1 X+a a*X+a^2  1  0  X a*X a*X a^2*X+1 a*X+1 a*X+1 a*X+1  a X+a a*X+a a*X+a a*X  1 a*X+a  0 a*X+1  X a^2*X+1
 0  0 a^2*X a*X  X  X  0 a^2*X a*X a^2*X a^2*X  X  0 a*X a*X a^2*X a*X  X  0  X a*X  X  0 a^2*X a*X a^2*X  X  0  0 a^2*X  X a*X  X  X a^2*X a^2*X a*X  0  0

generates a code of length 39 over F4[X]/(X^2) who´s minimum homogenous weight is 112.

Homogenous weight enumerator: w(x)=1x^0+96x^112+144x^113+96x^114+207x^116+96x^117+72x^118+99x^120+144x^121+15x^124+24x^126+24x^128+6x^140

The gray image is a linear code over GF(4) with n=156, k=5 and d=112.
This code was found by Heurico 1.16 in 0.016 seconds.