The generator matrix

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

generates a code of length 75 over GR(16,4) who´s minimum homogenous weight is 208.

Homogenous weight enumerator: w(x)=1x^0+291x^208+480x^209+432x^210+492x^211+1251x^212+2280x^213+840x^214+960x^215+2163x^216+3348x^217+1332x^218+1428x^219+3246x^220+4512x^221+1488x^222+1644x^223+3693x^224+5712x^225+1632x^226+1872x^227+3615x^228+5436x^229+1704x^230+1320x^231+3012x^232+3540x^233+1140x^234+1140x^235+1386x^236+1944x^237+480x^238+300x^239+594x^240+360x^241+168x^242+60x^243+120x^244+36x^245+33x^248+18x^252+9x^256+12x^260+6x^264+6x^272

The gray image is a code over GF(4) with n=300, k=8 and d=208.
This code was found by Heurico 1.16 in 22.6 seconds.