The generator matrix

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

generates a code of length 38 over Z8 who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+77x^30+364x^31+705x^32+1342x^33+2081x^34+2488x^35+3205x^36+3870x^37+4123x^38+4132x^39+3620x^40+2670x^41+1751x^42+1152x^43+637x^44+306x^45+156x^46+56x^47+21x^48+4x^49+4x^50+2x^52+1x^56

The gray image is a code over GF(2) with n=152, k=15 and d=60.
This code was found by Heurico 1.16 in 16.4 seconds.