The generator matrix

 1  0  0  0  1  1  1  X X^2+X  1  1  0 X^2  1  1  1  1  1  X X^2+X  1  1  1 X^2+X X^2 X^2  0  X  0  1 X^2+X  1  0  1 X^2+X  1  X  1 X^2  X  1 X^2+X  0  1 X^2  0  1  1
 0  1  0  0 X^2  1 X^2+1  1  1  X X+1  1  X  X X+1 X^2+X  1  0 X^2  1 X^2+1 X+1  1  0  1  1 X^2+X  1  1 X^2+X X^2+X X^2+X+1  1 X^2  1 X+1  1 X^2+X+1 X^2 X^2+X X^2+X  1  1  0  1 X^2+X X^2+1  0
 0  0  1  0 X^2+1  1 X^2 X^2+X+1  1  0 X^2+X+1  X  1 X+1  0 X+1  X X^2+X X^2  X X^2+X+1 X^2 X^2+X+1  1  X X+1  1  1  0 X^2 X^2+X  1 X^2+1 X^2+1 X^2+X+1 X^2+X+1  0  X  1  1  X  0 X^2+X  0 X^2+X X^2+X X^2  0
 0  0  0  1  1 X^2 X^2+X+1 X^2+X+1  X  1 X+1 X^2+X+1 X^2+X+1  X X^2+X  0 X^2+X X+1  1 X+1 X^2 X^2+X+1  1 X^2+X+1  1 X^2+X+1 X^2 X+1 X^2+X  X  1  X  1 X+1 X^2 X^2+1 X^2+1 X+1  1 X^2+X+1  X X^2+X+1 X^2+X+1  X X^2+X  1 X^2+X  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+50x^42+284x^43+351x^44+472x^45+425x^46+412x^47+381x^48+360x^49+366x^50+338x^51+175x^52+198x^53+106x^54+68x^55+60x^56+40x^57+4x^58+2x^59+2x^61+1x^62

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 0.44 seconds.