The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+67x^46+184x^47+270x^48+428x^49+630x^50+1006x^51+1377x^52+1936x^53+2415x^54+2928x^55+3374x^56+3432x^57+3521x^58+2930x^59+2496x^60+1956x^61+1301x^62+1004x^63+575x^64+392x^65+222x^66+126x^67+95x^68+44x^69+32x^70+12x^71+4x^72+4x^73+3x^74+2x^75+1x^86

The gray image is a code over GF(2) with n=228, k=15 and d=92.
This code was found by Heurico 1.16 in 37.4 seconds.