The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 33.

Homogenous weight enumerator: w(x)=1x^0+62x^33+212x^34+458x^35+766x^36+1166x^37+1887x^38+2714x^39+3284x^40+3854x^41+4006x^42+3746x^43+3420x^44+2690x^45+1910x^46+1174x^47+681x^48+404x^49+166x^50+100x^51+38x^52+16x^53+10x^54+2x^56+1x^70

The gray image is a code over GF(2) with n=168, k=15 and d=66.
This code was found by Heurico 1.16 in 20.3 seconds.