The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+43x^46+74x^47+281x^48+364x^49+737x^50+922x^51+1708x^52+1740x^53+2743x^54+2526x^55+3613x^56+2992x^57+3929x^58+2670x^59+2745x^60+1760x^61+1523x^62+886x^63+791x^64+292x^65+211x^66+86x^67+54x^68+20x^69+25x^70+2x^71+17x^72+3x^74+2x^75+5x^76+2x^78+1x^80

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 29.9 seconds.