The generator matrix

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

generates a code of length 43 over Z8 who´s minimum homogenous weight is 34.

Homogenous weight enumerator: w(x)=1x^0+73x^34+196x^35+448x^36+846x^37+1330x^38+1856x^39+2576x^40+3244x^41+3643x^42+4146x^43+3914x^44+3202x^45+2679x^46+1938x^47+1207x^48+710x^49+412x^50+178x^51+73x^52+56x^53+23x^54+6x^55+4x^56+6x^57+1x^68

The gray image is a code over GF(2) with n=172, k=15 and d=68.
This code was found by Heurico 1.16 in 21.3 seconds.