The generator matrix 1 0 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2a+2 1 1 1 2 1 1 1 1 2a^2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 a 3a^2+2 2a^2+3a+1 a^2+3a a^2+3a+3 3a^2+2a+3 a 3a^2+2 a^2+3a 1 0 2a^2+3a+1 3a^2+2a+3 2a^2+3 a^2+3a+3 3a^2+2a+3 a 1 a^2+3a 0 3a^2+2 a^2+3a+3 2a^2+3a+3 1 3a^2+2a+2 2a^2+3a+1 2a^2+3 2a^2+3 3a^2+2a+2 2a^2+3a+3 2a^2+2a+1 a^2+a a+2 a+2 a^2+3a+1 2 a^2+3a+1 a+2 3a^2+2a+2 2a^2+3a+3 2a^2+2a+3 3a^2+a a^2+a+2 3a+1 a^2 2a^2+3a 1 3a^2+3 3a^2+2a+1 1 2a^2+3a+3 2a a^2+3 1 2a^2+a+3 2a^2+2a+2 a 2a^2+2a+3 1 2a+1 a^2+a a^2+3a+1 a^2+3a 2 a^2+a+1 2 3a^2+3 a^2+3 0 2a^2+2a+1 2 3a^2+a 3a^2+2a a^2+2a+3 a^2+a+1 a^2+3a+3 0 0 0 2a^2+2 0 2 2 2a+2 2 2a^2 2a+2 2a^2+2 2a^2 2 2a^2+2a 2a^2+2a+2 0 2a^2+2 2 2a^2+2a+2 2a 2a 2a^2+2a 2a+2 2 2a^2+2a+2 2a^2+2 2a 2a^2+2 2a^2+2a 2a^2+2a+2 2a^2+2a 2a^2+2a 2a^2+2a 0 2a^2 0 2a+2 2a^2 2a+2 0 2 2a+2 2a^2+2a+2 2a+2 2a^2+2a+2 2a^2+2 0 2a^2+2 2a^2 2 2a^2+2a 2a 2a^2+2 2a^2 2 2a+2 0 2a^2+2 0 2a 2 2a^2+2a+2 2 2a^2+2a 2a^2+2a+2 2 2a^2+2 2a^2 2a^2+2 0 2a+2 2a^2+2 2a^2+2a+2 2a 2a 0 2a^2 2a^2 0 0 0 0 0 2 2a^2+2 2a^2+2a+2 2a+2 2a^2 2a^2+2a+2 2a^2+2 2a^2+2 2a^2+2 2a^2+2a+2 2a+2 2a+2 2a^2 2a^2 2a 2a^2 2 0 2a^2+2a 2a 2 2a 2a^2+2a 2a+2 2a 2a+2 2 2a^2+2a+2 0 2 0 0 2a^2+2 2a^2+2a 2a+2 2a+2 2a^2 2a 2a^2+2a+2 2a 2 2a+2 2a^2+2a 2a^2+2a 2a+2 2a 2a 2a^2+2a 2a 2a+2 2a+2 2a^2+2a 0 2 2 2a^2+2 2a^2+2a 2a^2+2 2a 2a^2+2a 2a^2 2a^2+2 2a^2+2 0 2a^2+2 2a^2+2a+2 2a^2+2a+2 2a^2 2a 2a 2a 2a^2+2a+2 0 0 2a^2 2a+2 2 generates a code of length 80 over GR(64,4) who´s minimum homogenous weight is 528. Homogenous weight enumerator: w(x)=1x^0+147x^528+168x^531+1134x^536+2128x^537+1176x^539+7420x^544+13608x^545+3024x^547+14686x^552+27048x^553+6832x^555+36204x^560+57848x^561+11144x^563+29477x^568+42728x^569+6328x^571+301x^576+210x^584+196x^592+119x^600+112x^608+42x^616+35x^624+28x^632 The gray image is a code over GF(8) with n=640, k=6 and d=528. This code was found by Heurico 1.16 in 19.7 seconds.