The generator matrix

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

generates a code of length 58 over Z8 who´s minimum homogenous weight is 43.

Homogenous weight enumerator: w(x)=1x^0+56x^43+71x^44+168x^45+254x^46+332x^47+630x^48+910x^49+1424x^50+1620x^51+2280x^52+2768x^53+3796x^54+4172x^55+5677x^56+5376x^57+6550x^58+5302x^59+5567x^60+4230x^61+3932x^62+2682x^63+2424x^64+1594x^65+1231x^66+910x^67+626x^68+390x^69+262x^70+150x^71+67x^72+46x^73+18x^74+8x^75+4x^77+4x^78+1x^80+2x^81+1x^82

The gray image is a code over GF(2) with n=232, k=16 and d=86.
This code was found by Heurico 1.16 in 98.8 seconds.