The generator matrix

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

generates a code of length 54 over Z4[X]/(X^3+2,2X) who´s minimum homogenous weight is 54.

Homogenous weight enumerator: w(x)=1x^0+50x^54+5x^56+2x^58+6x^60

The gray image is a code over GF(2) with n=432, k=6 and d=216.
This code was found by Heurico 1.16 in 0.078 seconds.