The generator matrix

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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 56.

Homogenous weight enumerator: w(x)=1x^0+7x^56+40x^57+4x^58+8x^59+2x^62+1x^70+1x^78

The gray image is a code over GF(2) with n=228, k=6 and d=112.
This code was found by Heurico 1.16 in 0.0295 seconds.