The generator matrix

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

generates a code of length 30 over Z8 who´s minimum homogenous weight is 22.

Homogenous weight enumerator: w(x)=1x^0+100x^22+408x^23+1000x^24+2024x^25+2902x^26+5550x^27+6734x^28+9232x^29+9067x^30+9830x^31+6995x^32+5440x^33+2989x^34+1882x^35+774x^36+384x^37+137x^38+58x^39+16x^40+8x^41+5x^42

The gray image is a code over GF(2) with n=120, k=16 and d=44.
This code was found by Heurico 1.16 in 43 seconds.