The generator matrix

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

generates a code of length 63 over Z8 who´s minimum homogenous weight is 55.

Homogenous weight enumerator: w(x)=1x^0+60x^55+160x^56+16x^57+349x^58+194x^59+464x^60+112x^61+544x^62+268x^63+596x^64+112x^65+525x^66+184x^67+288x^68+16x^69+96x^70+56x^71+23x^72+15x^74+6x^75+3x^80+7x^82+1x^88

The gray image is a code over GF(2) with n=252, k=12 and d=110.
This code was found by Heurico 1.16 in 7.85 seconds.