The generator matrix

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

generates a code of length 31 over Z8 who´s minimum homogenous weight is 21.

Homogenous weight enumerator: w(x)=1x^0+34x^21+166x^22+320x^23+479x^24+882x^25+1750x^26+2792x^27+4845x^28+7148x^29+8988x^30+10298x^31+9334x^32+7350x^33+4872x^34+2818x^35+1746x^36+772x^37+458x^38+270x^39+97x^40+64x^41+18x^42+14x^43+9x^44+6x^45+4x^46+1x^48

The gray image is a code over GF(2) with n=124, k=16 and d=42.
This code was found by Heurico 1.16 in 54.2 seconds.