The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+222x^30+840x^31+1405x^32+2770x^33+3377x^34+5354x^35+6196x^36+8338x^37+8027x^38+8552x^39+6673x^40+5598x^41+3415x^42+2532x^43+1126x^44+694x^45+215x^46+128x^47+52x^48+8x^49+8x^50+2x^51+2x^52+1x^56

The gray image is a code over GF(2) with n=152, k=16 and d=60.
This code was found by Heurico 1.16 in 60.1 seconds.