The generator matrix

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

generates a code of length 39 over Z8 who´s minimum homogenous weight is 31.

Homogenous weight enumerator: w(x)=1x^0+88x^31+218x^32+250x^33+805x^34+766x^35+1616x^36+1134x^37+2603x^38+1610x^39+2295x^40+1218x^41+1744x^42+790x^43+694x^44+202x^45+204x^46+70x^47+35x^48+12x^49+19x^50+4x^51+2x^52+1x^54+3x^56

The gray image is a code over GF(2) with n=156, k=14 and d=62.
This code was found by Heurico 1.16 in 51.7 seconds.