The generator matrix

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

generates a code of length 39 over Z8 who´s minimum homogenous weight is 29.

Homogenous weight enumerator: w(x)=1x^0+46x^29+225x^30+876x^31+1632x^32+3246x^33+4640x^34+7828x^35+9541x^36+13798x^37+14519x^38+17442x^39+14714x^40+14866x^41+10017x^42+7670x^43+4445x^44+2908x^45+1332x^46+786x^47+312x^48+144x^49+51x^50+22x^51+10x^52+1x^56

The gray image is a code over GF(2) with n=156, k=17 and d=58.
This code was found by Heurico 1.11 in 108 seconds.