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  4  2  1  1  1  2  1  1  1  1  1  4  0  1  1  1  4  2  1  1  1  1  4  4  2  1  1  1  1  2  4  1  1  1  4  1  1  1  2
 0  2  0  0  0  2  6  2  0  0  4  4  2  2  6  2  0  4  2  2  6  0  6  2  4  6  4  4  6  4  4  2  4  2  2  6  4  2  4  6  2  4  6  2  2  0  6  0  2  4  6  4  2  2  4  2  2  2  6  4  4  0  2  2  0  4  4  2  2  2  6  4
 0  0  2  0  2  2  6  0  0  4  2  2  2  6  4  0  0  0  6  0  4  6  2  4  6  2  2  0  6  0  2  0  6  6  6  6  4  6  2  0  4  4  4  4  0  2  6  0  4  2  6  4  2  4  2  2  0  2  2  6  6  2  2  6  6  2  2  0  0  6  4  6
 0  0  0  2  2  0  6  2  4  2  2  0  0  2  0  6  4  2  0  4  6  4  2  2  4  2  6  0  0  6  6  6  0  4  0  2  4  4  0  4  2  6  0  4  6  4  4  4  4  6  6  4  2  4  6  2  6  0  0  6  4  4  2  6  4  0  2  6  4  2  4  2
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  0  4  0  0  0  4  4  0  4  4  0  0  4  0  4  4  0  0  4  4  4  0  0  0  4  0  4  4  4  4  0  4  0  0  4  4  4  4  4  4  0  4  4  0  0  0  0  4  0  0  4  0  0  4  0  0  4
 0  0  0  0  0  4  0  4  4  0  4  4  4  0  4  0  4  4  0  0  0  0  0  4  0  4  0  0  4  0  4  0  4  4  0  4  0  0  4  0  4  4  4  0  4  0  0  0  4  0  4  0  0  4  4  4  0  4  0  0  4  4  0  4  0  4  0  4  4  4  4  4
 0  0  0  0  0  0  4  4  0  4  4  0  4  4  4  4  4  4  4  4  4  0  0  0  4  4  0  0  4  4  0  0  0  4  0  4  4  0  4  4  0  0  0  0  0  4  0  0  0  0  0  4  0  4  4  0  0  4  4  4  0  4  4  4  0  4  0  0  0  4  4  0

generates a code of length 72 over Z8 who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+58x^63+104x^64+128x^65+124x^66+200x^67+263x^68+292x^69+343x^70+400x^71+436x^72+380x^73+350x^74+232x^75+202x^76+142x^77+104x^78+102x^79+51x^80+66x^81+30x^82+24x^83+28x^84+14x^85+9x^86+8x^87+2x^89+2x^92+1x^116

The gray image is a code over GF(2) with n=288, k=12 and d=126.
This code was found by Heurico 1.16 in 1.27 seconds.