The generator matrix

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

generates a code of length 38 over Z8 who´s minimum homogenous weight is 31.

Homogenous weight enumerator: w(x)=1x^0+108x^31+379x^32+710x^33+1071x^34+1404x^35+1751x^36+1838x^37+1830x^38+1990x^39+1754x^40+1378x^41+1009x^42+594x^43+329x^44+138x^45+57x^46+30x^47+9x^48+2x^51+1x^54+1x^56

The gray image is a code over GF(2) with n=152, k=14 and d=62.
This code was found by Heurico 1.16 in 4.32 seconds.