The generator matrix

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

generates a code of length 19 over Z8 who´s minimum homogenous weight is 13.

Homogenous weight enumerator: w(x)=1x^0+120x^13+491x^14+1342x^15+2057x^16+4048x^17+5042x^18+6310x^19+5260x^20+4264x^21+2108x^22+1162x^23+358x^24+144x^25+38x^26+18x^27+4x^28+1x^30

The gray image is a code over GF(2) with n=76, k=15 and d=26.
This code was found by Heurico 1.16 in 5.22 seconds.