The generator matrix

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

generates a code of length 73 over GR(16,4) who´s minimum homogenous weight is 203.

Homogenous weight enumerator: w(x)=1x^0+468x^203+519x^204+600x^205+792x^206+1776x^207+1410x^208+2004x^209+1404x^210+2760x^211+2475x^212+2316x^213+1908x^214+3648x^215+3120x^216+2784x^217+2688x^218+3948x^219+2937x^220+2880x^221+2304x^222+3912x^223+2886x^224+2448x^225+2052x^226+3036x^227+1911x^228+1464x^229+828x^230+1452x^231+900x^232+684x^233+288x^234+492x^235+216x^236+180x^237+24x^238+12x^239+6x^244+3x^256

The gray image is a code over GF(4) with n=292, k=8 and d=203.
This code was found by Heurico 1.16 in 22.7 seconds.