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  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  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  1
 0  X  0 3X+2 2X+2 X+2  2  X  0 3X+2  2 3X  0 X+2 2X+2  X X+2  0  0 3X+2 3X 2X+2  2  X  0 3X+2  2 3X 3X+2 2X  2 3X 3X+2 2X 2X+2 X+2  X 2X  2 3X 2X  X 2X+2  X 2X X+2  2 X+2 X+2 2X 2X 3X 2X+2 3X+2 2X+2  X 2X X+2 2X+2 3X  0 3X+2  2 3X  0 3X+2 2X X+2 3X+2 3X+2  0
 0  0  2  0  2 2X+2  0 2X+2 2X 2X 2X 2X 2X+2  2 2X+2  2 2X+2  0  2  0  0  2  0 2X+2 2X 2X 2X 2X  2 2X+2 2X+2  2 2X+2 2X 2X 2X 2X 2X+2 2X+2 2X+2  0  0  0  2  2  2  2  0 2X 2X  2  2 2X+2  2  0 2X  0  0 2X  0 2X+2 2X+2  2 2X+2  0  0 2X+2 2X+2  0 2X  0
 0  0  0 2X 2X  0 2X 2X  0 2X 2X  0  0  0 2X 2X 2X 2X 2X  0 2X  0  0  0 2X  0  0 2X 2X 2X  0  0 2X  0 2X  0 2X  0 2X  0  0 2X 2X  0  0 2X 2X  0 2X 2X 2X 2X  0  0  0  0 2X 2X  0  0 2X  0  0 2X  0  0  0 2X 2X  0  0

generates a code of length 71 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+24x^68+90x^69+72x^70+654x^71+69x^72+86x^73+23x^74+2x^75+2x^76+1x^138

The gray image is a code over GF(2) with n=568, k=10 and d=272.
This code was found by Heurico 1.16 in 0.484 seconds.