The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  2  2  1  1  1  1  1  1  1
 0  1  1  a 3a^2+2 2a^2+3a+1 a^2+3a a^2+3a+3 3a^2+2a+3  0 2a^2+3  a 3a^2+2 a^2+3a 3a^2+2a+3 2a^2+3a+1 a^2+3a+3  1  2 3a^2+3 a+2 a^2+3a+1  1  2 2a^2+2a+1 3a^2+2a 2a^2+3a+3 a^2+a  2 2a^2+2a+3 a+2
 0  0 2a^2+2 2a  2  0 2a+2 2a^2+2a+2 2a^2+2a 2a^2 2a 2a^2+2a 2a+2  2 2a^2+2 2a^2+2a+2 2a^2 2a 2a^2+2 2a 2a^2+2a+2  0 2a^2+2 2a^2+2a 2a+2 2a^2+2a  2 2a^2 2a^2+2a+2 2a^2  2

generates a code of length 31 over GR(64,4) who´s minimum homogenous weight is 205.

Homogenous weight enumerator: w(x)=1x^0+2016x^205+1680x^206+147x^208+6720x^213+3360x^214+294x^216+12768x^221+5712x^222+7x^224+21x^240+42x^248

The gray image is a code over GF(8) with n=248, k=5 and d=205.
This code was found by Heurico 1.16 in 0.0974 seconds.