The generator matrix

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

generates a code of length 24 over Z8 who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+54x^20+96x^22+215x^24+96x^26+42x^28+7x^32+1x^40

The gray image is a code over GF(2) with n=96, k=9 and d=40.
This code was found by Heurico 1.16 in 0.00849 seconds.