The generator matrix

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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+48x^45+78x^46+180x^47+653x^48+898x^49+1707x^50+2068x^51+3030x^52+3652x^53+4969x^54+5512x^55+7052x^56+6160x^57+6640x^58+5242x^59+5314x^60+3846x^61+3164x^62+2030x^63+1462x^64+752x^65+555x^66+250x^67+144x^68+62x^69+37x^70+14x^71+8x^72+6x^73+2x^74

The gray image is a code over GF(2) with n=228, k=16 and d=90.
This code was found by Heurico 1.16 in 98.7 seconds.