The generator matrix 1 0 0 0 1 1 1 1 1 1 1 1 2a+2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2a+2 1 1 1 1 1 1 1 0 0 1 2a 1 2 1 1 2a+2 1 1 1 1 2a+2 1 2 1 1 2 1 1 2a+2 1 1 2a 1 2 1 2a 1 1 1 1 1 0 0 1 2 1 1 1 0 1 0 1 0 0 2a+2 0 2a+2 1 3a+2 3a+3 2 0 2 3a+1 a+2 3 3 2 a+1 1 3a 3a+3 3 3 2a+3 a+1 2a+1 a+1 1 2a 3a 2a+1 2a+1 3a+3 0 3a+3 1 2a 2a+3 1 2a+1 1 3a+2 2 1 3a+3 3a 2a a+1 1 3a+3 2 2 2 1 3a+1 3a 1 2a+3 a 1 a+2 1 3a 2a a 0 a+1 a a+1 1 1 a+2 1 a+2 0 2a 2a+2 3 0 0 1 0 2 2a+2 0 2a 2a 2a 2a+3 2a+3 1 a+1 3a+2 2a+1 1 3a a+1 a+3 2a+3 3 3a+1 a+2 2a+1 3a+1 0 a+2 2a+3 a+3 3a+3 3a+1 2a 2a+1 3 3a+2 3 1 a 3a 3a+3 1 a+1 a+1 a 2a+2 2a+1 3 2a+2 1 1 1 2 a 2a+2 3 1 0 2a+2 2 a 2a+2 a+3 a 1 1 3a+2 3a+2 3a a+3 3a+2 3a+3 3a+3 2a a+1 2a+2 a+1 1 3a 0 0 0 1 2a+3 3a+2 3a+3 3a+1 a+1 a+3 3a+3 2 a+1 2a 1 2 a a a+1 a+1 2a 3a+3 3a 3a+3 2a+1 3a+2 2 0 3a+2 a+3 a+2 0 1 2a 3 a 2a+1 2a+1 2a+3 2a+2 2a+3 0 2a+2 3 a+3 a+2 a+3 3a+2 2a+3 3a+3 2a+1 a 1 0 3a a+2 3 3 a+2 2a+1 3a 3a+3 3a+2 3a+2 2 a+2 2a+3 a+3 a+3 3 2a 3a+1 0 a+3 a+2 a+3 2a 3a+3 2a generates a code of length 79 over GR(16,4) who´s minimum homogenous weight is 221. Homogenous weight enumerator: w(x)=1x^0+576x^221+1008x^222+480x^223+429x^224+1752x^225+2808x^226+816x^227+1095x^228+3108x^229+3936x^230+1116x^231+1224x^232+3960x^233+4956x^234+1404x^235+1203x^236+4284x^237+5064x^238+1380x^239+1188x^240+3996x^241+3996x^242+1332x^243+1128x^244+3096x^245+3768x^246+720x^247+552x^248+1644x^249+1644x^250+336x^251+291x^252+504x^253+432x^254+96x^255+54x^256+120x^257+36x^258+3x^260 The gray image is a code over GF(4) with n=316, k=8 and d=221. This code was found by Heurico 1.16 in 28.9 seconds.