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

generates a code of length 63 over Z8 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+83x^50+72x^51+278x^52+318x^53+461x^54+538x^55+573x^56+738x^57+924x^58+1308x^59+2000x^60+3022x^61+3837x^62+4306x^63+3872x^64+3174x^65+2033x^66+1306x^67+983x^68+772x^69+623x^70+416x^71+379x^72+272x^73+198x^74+106x^75+90x^76+24x^77+30x^78+12x^79+15x^80+2x^82+1x^84+1x^110

The gray image is a code over GF(2) with n=252, k=15 and d=100.
This code was found by Heurico 1.16 in 58.8 seconds.