The generator matrix

 1  0  0  0  1  1  1  1 X^2  1  0  0  1  1  0 X^2  1 X^2+X  X  X  1  1  0 X^2+X  1  1  1  1 X^2  1  X  1  1  1  X  1 X^2  0 X^2+X  1  1  X X^2+X  X X^2+X  1 X^2+X  1
 0  1  0  0  0  1 X^2+1  X  1  1  1 X^2+X X^2 X^2+X+1  1  1 X^2 X^2  0  1 X^2+X+1  1  X  1  X  X X^2 X^2  1 X^2+1  1  1 X^2+1 X^2+X+1  X X^2+X+1 X^2+X  1  0 X+1  X  1 X^2  1  1 X^2+1  1  1
 0  0  1  0  0 X^2  1 X^2+1 X^2+X+1 X+1 X^2+X  1 X^2+X+1  0  1  X  0 X^2+X  1 X+1 X^2+1 X^2  1  X X^2+X X^2+X+1 X^2+X X^2+1 X^2+1 X^2+X  0 X^2+1 X+1  1 X^2+X  X X^2+X X+1  1 X+1  0 X^2  1 X^2+X+1  1  0 X^2+X+1 X^2+1
 0  0  0  1  1  0 X^2+1 X^2+X  1 X^2+X X+1  1 X^2+1 X^2+X+1 X^2 X^2+X X^2+X+1  1 X^2+1  0 X^2  X  0 X^2+X+1 X+1 X+1  0  X X+1 X^2+X X+1 X^2 X+1  X  1 X^2  1  1 X^2+1 X^2+X  0  0 X^2  X X^2+X  1 X+1 X^2+X+1
 0  0  0  0 X^2 X^2 X^2 X^2  0  0 X^2 X^2  0  0 X^2  0 X^2 X^2  0  0 X^2  0 X^2  0  0 X^2 X^2  0  0 X^2  0  0  0 X^2 X^2  0  0 X^2 X^2  0 X^2 X^2 X^2  0  0  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+476x^42+1280x^44+1646x^46+1636x^48+1528x^50+941x^52+524x^54+139x^56+14x^58+3x^60+2x^62+2x^66

The gray image is a linear code over GF(2) with n=192, k=13 and d=84.
This code was found by Heurico 1.11 in 10.3 seconds.