length n = 81
dimension k = 4
alphabet length q = 4

minimum distance d = 60

generator matrix:
000100011100000011111101110001111111110001111111110011111111111111111111111111111
001001100100111100002310111110001122331110001122331100223311123112233112222233333
010010101011002300230011011231230201031231230302012323030211321231213231233312223
100011010023230023000011102132132010303213213020103232302013121232131323312321232

projective group of automorphisms generated by:
0001
1000
0100
0010

0100
1000
0010
0001