The generator matrix

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

generates a code of length 49 over Z8 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+34x^42+102x^43+219x^44+304x^45+381x^46+430x^47+413x^48+448x^49+410x^50+388x^51+348x^52+260x^53+168x^54+70x^55+36x^56+16x^57+25x^58+18x^59+6x^60+12x^61+5x^62+1x^66+1x^68

The gray image is a code over GF(2) with n=196, k=12 and d=84.
This code was found by Heurico 1.16 in 0.51 seconds.