length n = 20
dimension k = 7
alphabet length q = 3

minimum distance d = 9

generator matrix:

0	1	1	1	0	0	1	1	1	1	1	1	0	0	1	1	1	1	1	1
1	0	1	2	1	1	0	0	1	1	2	2	1	1	0	0	1	1	2	2
0	0	0	0	0	0	1	2	1	2	0	0	1	2	1	2	0	0	1	2
0	0	0	0	1	2	2	1	2	1	1	2	1	2	1	2	1	2	2	1
0	0	0	0	0	0	1	2	0	0	2	1	2	1	0	0	1	2	2	1
1	0	2	1	0	0	0	0	0	0	0	0	2	2	1	1	0	0	1	1
0	2	1	1	0	0	0	0	0	0	0	0	1	1	1	1	1	1	0	0

projective group of automorphisms generated by:

2	2	0	0	0	0	0
1	2	0	0	0	0	0
0	0	0	1	1	0	0
0	0	0	2	0	0	0
0	0	2	0	0	0	0
0	0	0	0	0	1	1
0	0	0	0	0	2	1