The generator matrix

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

generates a code of length 77 over GR(16,4) who´s minimum homogenous weight is 211.

Homogenous weight enumerator: w(x)=1x^0+1296x^211+780x^212+6312x^215+2445x^216+13176x^219+4836x^220+22752x^223+8829x^224+31824x^227+11418x^228+39444x^231+13137x^232+36564x^235+12258x^236+28032x^239+8019x^240+13320x^243+2901x^244+3468x^247+801x^248+396x^251+30x^252+24x^255+36x^256+18x^260+9x^264+12x^268+3x^272+3x^276

The gray image is a code over GF(4) with n=308, k=9 and d=211.
This code was found by Heurico 1.16 in 319 seconds.