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

generates a code of length 62 over Z8 who´s minimum homogenous weight is 53.

Homogenous weight enumerator: w(x)=1x^0+48x^53+62x^54+134x^55+148x^56+224x^57+142x^58+454x^59+124x^60+694x^61+129x^62+690x^63+133x^64+458x^65+94x^66+186x^67+78x^68+94x^69+58x^70+64x^71+20x^72+14x^73+20x^74+8x^75+6x^76+4x^77+7x^78+1x^80+1x^96

The gray image is a code over GF(2) with n=248, k=12 and d=106.
This code was found by Heurico 1.16 in 1.33 seconds.