length n = 20
dimension k = 6
alphabet length q = 9

minimum distance d = 6

generator matrix:
00000000000011111111
00001111111100000000
00000000000000481122
00000000000048001212
11110000125700000000
12571257000000000000

projective group of automorphisms generated by:
100000
000001
000100
001000
010000
000010

100000
030000
002000
000100
000060
000008