The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 X^2  1  1  1  1 X^2  1  1 X^2  1  1
 0 X^3+X^2  0 X^2  0  0 X^2 X^3+X^2 X^3  0 X^3+X^2 X^3+X^2 X^3  0 X^2 X^2  0 X^2 X^3+X^2  0 X^3+X^2 X^3  0 X^3+X^2  0 X^2 X^2  0 X^3 X^2  0 X^3+X^2 X^3 X^2 X^3 X^3+X^2 X^3+X^2 X^3 X^2 X^3 X^2 X^2 X^3 X^3 X^2 X^3 X^2  0 X^3+X^2 X^3+X^2 X^3 X^3 X^3 X^3 X^3+X^2 X^2  0 X^3+X^2 X^3+X^2 X^3 X^3 X^3 X^3  0  0 X^2 X^2
 0  0 X^3+X^2 X^2  0 X^3+X^2 X^2  0 X^2  0 X^2 X^3 X^2  0 X^3+X^2 X^3 X^2 X^2 X^3  0 X^2 X^3+X^2 X^3  0  0 X^2  0 X^3+X^2 X^2 X^3+X^2 X^3 X^3 X^3 X^3  0 X^3+X^2 X^2 X^3  0  0 X^2 X^3 X^3+X^2 X^3+X^2 X^3 X^2 X^3+X^2 X^3+X^2 X^3 X^2 X^3 X^2 X^2 X^3 X^2 X^3+X^2 X^3 X^3+X^2  0  0 X^3  0 X^2 X^3+X^2 X^3  0  0
 0  0  0 X^3  0  0 X^3  0 X^3 X^3  0 X^3 X^3 X^3  0 X^3  0  0 X^3 X^3  0  0 X^3 X^3  0 X^3  0 X^3 X^3 X^3  0  0  0  0 X^3  0 X^3  0 X^3 X^3  0  0 X^3 X^3  0  0  0  0 X^3 X^3  0  0  0 X^3 X^3  0  0  0 X^3 X^3  0  0 X^3 X^3  0 X^3  0
 0  0  0  0 X^3  0 X^3 X^3 X^3 X^3 X^3  0  0  0  0 X^3 X^3  0 X^3 X^3 X^3 X^3  0  0  0  0  0  0 X^3 X^3 X^3 X^3  0 X^3 X^3  0 X^3 X^3  0  0 X^3  0 X^3 X^3  0  0  0 X^3  0 X^3 X^3  0 X^3  0  0 X^3  0  0 X^3 X^3  0  0  0  0  0 X^3 X^3
 0  0  0  0  0 X^3  0  0  0  0  0  0  0  0  0  0  0 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3 X^3  0  0  0  0  0  0  0  0  0  0 X^3  0 X^3 X^3 X^3  0 X^3 X^3 X^3  0 X^3 X^3  0 X^3  0 X^3  0 X^3 X^3  0 X^3  0  0 X^3 X^3

generates a code of length 67 over Z2[X]/(X^4) who´s minimum homogenous weight is 62.

Homogenous weight enumerator: w(x)=1x^0+110x^62+258x^64+192x^66+1024x^67+156x^68+204x^70+28x^72+48x^74+4x^76+22x^78+1x^128

The gray image is a linear code over GF(2) with n=536, k=11 and d=248.
This code was found by Heurico 1.16 in 26.3 seconds.