The generator matrix

 1  0  1  1  1  6  1  1  2  1  1  2  6  4  1  1  1  1  4  1  1  0  1  1  1  1  1  1  0  1  1  6  6  4  2  1  1  1  1  1  6  1  0  0  1  1  1  1  2  1  1  2  1  1  0  4  1  1  4  1  1  2  1  6  0  1  1  1  1  4  2  1
 0  1  1  6  3  1  5  4  1  2  7  1  1  1  0  1  6  4  1  7  2  1  1  7  7  1  3  0  1  5  2  1  1  1  1  0  6  0  7  1  1  6  1  1  4  6  3  5  0  4  6  6  3  5  1  1  4  5  1  5  4  1  4  1  2  7  0  0  2  1  2  4
 0  0  2  0  4  0  4  2  2  2  2  6  0  2  0  6  6  6  0  4  0  6  4  6  2  2  0  6  2  0  6  2  4  6  4  4  4  2  0  0  6  2  4  4  4  4  6  6  4  4  0  0  6  2  0  4  2  0  2  4  6  2  0  6  6  0  6  4  6  6  2  0
 0  0  0  4  4  4  0  4  4  0  4  0  0  0  4  0  4  0  4  4  0  4  0  4  0  4  0  0  0  4  4  4  4  4  0  4  0  4  0  4  0  0  4  0  0  4  0  4  4  4  0  4  4  0  4  0  0  0  4  4  4  0  0  4  0  4  4  0  0  0  0  4

generates a code of length 72 over Z8 who´s minimum homogenous weight is 69.

Homogenous weight enumerator: w(x)=1x^0+80x^69+75x^70+120x^71+57x^72+48x^73+36x^74+36x^75+13x^76+32x^77+7x^78+2x^79+1x^86+2x^87+1x^92+1x^94

The gray image is a code over GF(2) with n=288, k=9 and d=138.
This code was found by Heurico 1.16 in 1.1 seconds.