The generator matrix

 1  0  1  1  1 X^2+X  1  1 X^2  1  X  1  1  X  1  1  0  1  1  X  1 X^2+X  1  0  1  1  1  0  1  1  1  1  1  X  X  1  1  1  X  1 X^2+X  1  1  1  1  1  1  1
 0  1  1  0 X^2+X+1  1 X+1 X^2+X  1 X^2  1 X^2+1  X  1 X+1  0  1 X+1 X^2+1  1  1  1 X^2+X  1 X^2+X  0 X+1  1 X^2 X^2+X  1 X^2+1  X  1  1  1 X^2+X X^2+X  1 X+1  1 X^2+1  X X^2+1  X X^2  0 X+1
 0  0  X  0 X^2+X  0 X^2 X^2  X X^2+X X^2+X X^2  X X^2+X  X  X  X X^2  X X^2 X^2 X^2+X  0  0  X  0  X  0  0 X^2+X  0 X^2+X X^2  X X^2+X X^2 X^2+X X^2+X  X  0  0 X^2 X^2+X  X  0 X^2  0 X^2+X
 0  0  0  X  0  0  0 X^2 X^2 X^2 X^2  0  0 X^2 X^2+X X^2+X X^2+X X^2+X  X X^2+X X^2+X X^2+X X^2+X  X  X  0  X  0  X X^2 X^2  X X^2 X^2  0 X^2+X X^2+X  X X^2+X X^2  X X^2+X  X X^2+X  0  0 X^2+X  0
 0  0  0  0 X^2  0  0  0 X^2 X^2  0  0  0  0  0 X^2  0  0  0 X^2 X^2  0 X^2  0 X^2 X^2 X^2 X^2  0 X^2  0 X^2 X^2  0 X^2  0 X^2  0 X^2 X^2  0 X^2 X^2  0  0 X^2 X^2  0
 0  0  0  0  0 X^2 X^2 X^2  0 X^2  0  0 X^2 X^2  0 X^2  0  0 X^2 X^2  0 X^2  0  0  0 X^2 X^2  0 X^2  0  0 X^2 X^2  0  0 X^2 X^2  0  0 X^2 X^2 X^2 X^2  0 X^2  0 X^2  0

generates a code of length 48 over Z2[X]/(X^3) who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+173x^42+172x^43+305x^44+380x^45+391x^46+472x^47+417x^48+472x^49+343x^50+380x^51+230x^52+172x^53+91x^54+49x^56+24x^58+20x^60+2x^62+1x^64+1x^68

The gray image is a linear code over GF(2) with n=192, k=12 and d=84.
This code was found by Heurico 1.16 in 45.3 seconds.