The generator matrix

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

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+196x^42+112x^43+402x^44+304x^45+488x^46+356x^47+487x^48+368x^49+468x^50+264x^51+288x^52+128x^53+130x^54+4x^55+55x^56+28x^58+13x^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 21.2 seconds.