The generator matrix

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

generates a code of length 42 over Z8 who´s minimum homogenous weight is 35.

Homogenous weight enumerator: w(x)=1x^0+182x^35+498x^36+700x^37+1125x^38+1420x^39+1557x^40+1778x^41+1839x^42+1892x^43+1626x^44+1338x^45+1085x^46+688x^47+337x^48+150x^49+109x^50+38x^51+12x^52+2x^53+2x^54+4x^55+1x^56

The gray image is a code over GF(2) with n=168, k=14 and d=70.
This code was found by Heurico 1.11 in 2.37 seconds.