The generator matrix

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

generates a code of length 28 over Z8 who´s minimum homogenous weight is 23.

Homogenous weight enumerator: w(x)=1x^0+62x^23+290x^24+446x^25+547x^26+470x^27+556x^28+490x^29+502x^30+334x^31+209x^32+102x^33+63x^34+14x^35+8x^36+2x^37

The gray image is a code over GF(2) with n=112, k=12 and d=46.
This code was found by Heurico 1.11 in 0.109 seconds.