The generator matrix

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

generates a code of length 22 over Z2[X]/(X^4) who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+20x^20+64x^21+88x^22+64x^23+10x^24+8x^26+1x^32

The gray image is a linear code over GF(2) with n=176, k=8 and d=80.
This code was found by Heurico 1.16 in 0.016 seconds.