The generator matrix

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

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+85x^42+224x^43+346x^44+420x^45+490x^46+436x^47+351x^48+368x^49+352x^50+360x^51+270x^52+164x^53+82x^54+68x^55+48x^56+8x^57+11x^58+8x^60+4x^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 0.516 seconds.