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

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

Homogenous weight enumerator: w(x)=1x^0+7x^72+48x^73+7x^74+1x^82

The gray image is a code over GF(2) with n=288, k=6 and d=144.
This code was found by Heurico 1.16 in 0.108 seconds.