The generator matrix

 1  1  1  1  1  1  1  1  X  X  1  1  X  1  1  X  X  X  X
 0  2  0  0  0  2  2  2  0  0  0  2  2  0  2  0  2  2  2
 0  0  2  0  2  2  2  0  0  2  0  2  2  2  2  2  0  2  0
 0  0  0  2  2  0  2  2  2  2  0  0  0  0  2  0  2  2  0

generates a code of length 19 over Z4[X]/(X^3+2,2X) who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+18x^18+96x^19+6x^20+4x^22+1x^24+2x^26

The gray image is a code over GF(2) with n=152, k=7 and d=72.
This code was found by Heurico 1.16 in 1.05e-007 seconds.