The generator matrix

 1  0  0  1  1  1  6  1  1  4  1  2  1  4  1  4  0  1  2
 0  1  0  1  6  3  1  0  1  1  2  1  3  2  0  1  0  1  0
 0  0  1  1  3  6  3  6  3  2  1  1  0  1  3  1  1  1  0
 0  0  0  4  0  0  0  0  0  0  4  4  0  4  0  4  0  4  0
 0  0  0  0  4  0  0  0  0  0  4  0  4  4  4  4  4  4  0
 0  0  0  0  0  4  0  0  0  4  4  0  4  0  4  0  4  4  4
 0  0  0  0  0  0  4  0  0  4  4  4  0  0  4  4  4  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  0  0  0  0  4  0  4  4  4  0  4  0  0  4  0

generates a code of length 19 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+137x^12+80x^13+476x^14+1120x^15+2199x^16+4272x^17+5324x^18+5440x^19+5518x^20+4272x^21+2068x^22+1120x^23+566x^24+80x^25+68x^26+25x^28+2x^32

The gray image is a code over GF(2) with n=76, k=15 and d=24.
This code was found by Heurico 1.16 in 4.57 seconds.