The generator matrix

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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 43.

Homogenous weight enumerator: w(x)=1x^0+36x^43+90x^44+158x^45+275x^46+468x^47+694x^48+1286x^49+1604x^50+2288x^51+2793x^52+4006x^53+4292x^54+5786x^55+5638x^56+6606x^57+5581x^58+6056x^59+4339x^60+3996x^61+2782x^62+2344x^63+1514x^64+1012x^65+745x^66+512x^67+262x^68+200x^69+79x^70+42x^71+27x^72+16x^73+2x^74+4x^75+2x^80

The gray image is a code over GF(2) with n=228, k=16 and d=86.
This code was found by Heurico 1.16 in 98.1 seconds.