length n = 84
dimension k = 3
alphabet length q = 8

minimum distance d = 72

generator matrix:
010100101010101010101111111111111111111111111111111111111111111111111111111111111111
000011115151617121314000000001151617121314222725242623333434363537445474746557566677
101001020203040506070253647471253647526374113647526374112525526374136636374125471521

projective group of automorphisms generated by:
100
010
001

001
010
100