The generator matrix

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

generates a code of length 19 over Z8 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+160x^15+438x^16+528x^17+577x^18+684x^19+642x^20+520x^21+346x^22+144x^23+39x^24+8x^25+5x^26+4x^27

The gray image is a code over GF(2) with n=76, k=12 and d=30.
This code was found by Heurico 1.16 in 0.123 seconds.