The generator matrix

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

generates a code of length 31 over Z8 who´s minimum homogenous weight is 23.

Homogenous weight enumerator: w(x)=1x^0+96x^23+250x^24+684x^25+780x^26+2110x^27+1957x^28+4364x^29+3072x^30+5860x^31+3316x^32+4596x^33+1896x^34+2048x^35+826x^36+580x^37+128x^38+124x^39+48x^40+16x^41+12x^42+2x^43+1x^44+1x^48

The gray image is a code over GF(2) with n=124, k=15 and d=46.
This code was found by Heurico 1.16 in 92.2 seconds.