The generator matrix

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

generates a code of length 66 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+30x^68+1x^72

The gray image is a code over GF(2) with n=264, k=5 and d=136.
This code was found by Heurico 1.16 in 0.119 seconds.