The generator matrix

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

generates a code of length 43 over Z8 who´s minimum homogenous weight is 36.

Homogenous weight enumerator: w(x)=1x^0+45x^36+108x^37+179x^38+280x^39+387x^40+406x^41+426x^42+500x^43+445x^44+406x^45+328x^46+238x^47+164x^48+66x^49+51x^50+26x^51+14x^52+6x^53+4x^54+10x^55+3x^58+2x^59+1x^62

The gray image is a code over GF(2) with n=172, k=12 and d=72.
This code was found by Heurico 1.16 in 0.421 seconds.