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

generates a code of length 74 over Z4[X]/(X^3+2,2X) who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+3x^74+54x^75+3x^76+1x^78+2x^79

The gray image is a code over GF(2) with n=592, k=6 and d=296.
This code was found by Heurico 1.16 in 0.234 seconds.