The generator matrix

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

generates a code of length 30 over Z8 who´s minimum homogenous weight is 23.

Homogenous weight enumerator: w(x)=1x^0+78x^23+122x^24+160x^25+404x^26+720x^27+888x^28+1040x^29+1248x^30+1228x^31+943x^32+576x^33+392x^34+256x^35+72x^36+16x^37+22x^39+22x^40+4x^42

The gray image is a code over GF(2) with n=120, k=13 and d=46.
This code was found by Heurico 1.16 in 80 seconds.