The generator matrix

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

generates a code of length 57 over Z8 who´s minimum homogenous weight is 46.

Homogenous weight enumerator: w(x)=1x^0+142x^46+478x^47+986x^48+1756x^49+2678x^50+4404x^51+5662x^52+8012x^53+9683x^54+11866x^55+12352x^56+14306x^57+12840x^58+12192x^59+9834x^60+8224x^61+5754x^62+4246x^63+2449x^64+1524x^65+840x^66+452x^67+190x^68+92x^69+61x^70+26x^71+12x^72+6x^73+2x^74+2x^76

The gray image is a code over GF(2) with n=228, k=17 and d=92.
This code was found by Heurico 1.11 in 185 seconds.