The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+170x^15+426x^16+538x^17+585x^18+632x^19+658x^20+548x^21+338x^22+154x^23+35x^24+2x^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 1.11 in 0.0641 seconds.