The generator matrix

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

generates a code of length 71 over GR(16,4) who´s minimum homogenous weight is 205.

Homogenous weight enumerator: w(x)=1x^0+144x^205+264x^207+1239x^208+192x^209+264x^211+669x^212+144x^213+48x^215+36x^216+144x^217+9x^220+96x^221+168x^223+561x^224+48x^225+24x^227+39x^228+3x^236+3x^240

The gray image is a code over GF(4) with n=284, k=6 and d=205.
This code was found by Heurico 1.16 in 12.2 seconds.