The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  4  2  0  2  1  1  0  4  1  0  1  2  1  1  1  2  1  1  0  2  2  2  1  1  1  4
 0  2  0  0  0  0  0  0  0  2  6  2  2  4  0  6  6  6  6  4  4  2  6  2  0  2  2  4  2  2  0  4  0  2  6  2  6  6  4  4  2  4  0  2  6  0  2  2  0  4  2  4  0  4  4  4  6  2  2
 0  0  2  0  0  0  2  6  2  2  2  4  2  4  6  4  0  2  4  2  2  4  0  6  0  0  6  0  2  2  4  6  2  4  0  2  2  4  6  2  4  2  0  4  0  2  4  2  4  2  2  4  6  2  2  4  2  6  2
 0  0  0  2  0  2  2  2  4  4  0  0  2  6  6  6  0  2  6  0  6  0  6  4  4  2  0  4  2  2  6  0  4  6  0  6  6  2  0  2  2  0  2  4  0  6  0  2  6  4  4  4  2  2  2  4  6  6  0
 0  0  0  0  2  2  4  6  2  4  2  2  6  4  2  4  4  0  2  6  4  2  0  4  4  2  2  6  6  0  6  4  6  4  4  0  0  2  6  2  4  4  2  2  4  2  0  4  2  4  4  2  2  2  6  0  4  6  0
 0  0  0  0  0  4  4  4  0  0  4  4  4  4  0  0  4  4  0  4  0  0  4  4  4  4  0  4  0  0  0  4  4  0  0  4  0  0  4  0  4  0  0  0  4  0  4  4  4  4  4  0  0  0  4  4  0  0  4

generates a code of length 59 over Z8 who´s minimum homogenous weight is 51.

Homogenous weight enumerator: w(x)=1x^0+88x^51+141x^52+174x^53+198x^54+248x^55+300x^56+352x^57+406x^58+378x^59+417x^60+338x^61+288x^62+230x^63+146x^64+134x^65+74x^66+50x^67+42x^68+24x^69+22x^70+26x^71+8x^72+2x^73+4x^74+4x^75+1x^88

The gray image is a code over GF(2) with n=236, k=12 and d=102.
This code was found by Heurico 1.16 in 84 seconds.