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  X  1  1  1  X  1  1  1  1  1
 0  X  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  X  0  X  X  X  X  X  X  X  0
 0  0  X  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  X  X  X  X  X  X  X  X  X  X  X  0  X  X  0
 0  0  0  X  0  0  0  0  0  0  0  0  0  0  0  X  X  X  X  X  X  X  0  0  0  0  0  0  0  0  0  X  0
 0  0  0  0  X  0  0  0  0  0  0  0  0  0  X  X  X  0  0  0  X  X  X  0  X  0  0  0  0  0  X  X  0
 0  0  0  0  0  X  0  0  0  0  0  0  0  0  X  0  X  X  0  X  X  0  0  X  X  0  X  0  0  X  X  0  0
 0  0  0  0  0  0  X  0  0  0  0  0  0  0  X  X  0  X  X  0  X  0  X  X  0  0  X  X  0  0  0  0  0
 0  0  0  0  0  0  0  X  0  0  0  0  0  X  X  X  X  X  X  X  0  X  X  X  X  0  X  X  X  0  0  0  0
 0  0  0  0  0  0  0  0  X  0  0  0  0  X  0  0  X  X  0  0  X  X  X  X  0  0  X  0  X  X  X  0  X
 0  0  0  0  0  0  0  0  0  X  0  0  0  X  0  X  X  0  X  0  X  0  0  X  X  0  X  0  0  X  0  X  X
 0  0  0  0  0  0  0  0  0  0  X  0  0  X  0  X  0  X  0  X  X  0  X  0  X  0  0  X  0  0  0  X  0
 0  0  0  0  0  0  0  0  0  0  0  X  0  X  X  0  0  X  X  0  X  X  0  0  X  X  X  X  0  X  0  X  0
 0  0  0  0  0  0  0  0  0  0  0  0  X  X  X  0  X  0  X  X  X  0  X  0  0  X  X  0  0  0  0  X  0

generates a code of length 33 over Z2[X]/(X^2) who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+28x^18+105x^20+253x^22+366x^24+457x^26+676x^28+994x^30+2048x^31+1263x^32+4096x^33+1185x^34+2048x^35+910x^36+711x^38+514x^40+371x^42+228x^44+89x^46+32x^48+7x^50+1x^52+1x^62

The gray image is a linear code over GF(2) with n=66, k=14 and d=18.
This code was found by Heurico 1.16 in 11.8 seconds.