length n = 81
dimension k = 6
alphabet length q = 4

minimum distance d = 56

generator matrix:
000000000000000111111111111111011111111111111111111111111111111111111111111111111
000000111111111000000000112233101111111122233311111111222222222223333333333312233
000111000112233000112233000000110111122311213322222333111112223331112223333332312
111123123000000000030201030201111011312312231111233123112333332231232231122221323
123321000030201123000000302010111101321322111323113213233231231332221212312323132
321000321302010321302010000000111110322121133132323222321131321212131333232133221

projective group of automorphisms generated by:
020000
000002
200000
000200
002000
000020

000002
200000
000200
000020
002000
020000