length n = 21
dimension k = 7
alphabet length q = 2

minimum distance d = 8

generator matrix:

0	0	0	0	0	1	0	0	0	1	0	0	1	1	0	1	1	1	1	1	1
0	0	0	0	1	0	0	0	1	0	0	1	0	1	1	0	1	1	1	1	1
0	0	0	1	0	0	0	0	0	1	1	1	0	0	1	1	0	1	1	1	1
0	0	0	0	0	0	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0
0	0	1	0	0	0	0	1	0	0	1	0	0	1	1	1	1	0	1	1	1
0	1	0	0	0	0	0	1	0	0	0	1	1	0	1	1	1	1	0	1	1
1	0	0	0	0	0	0	0	1	0	1	0	1	0	1	1	1	1	1	0	1

projective group of automorphisms generated by:

0	0	0	0	0	0	1
0	0	0	0	0	1	0
0	1	0	0	0	0	0
0	0	0	1	0	0	0
1	0	0	0	0	0	0
0	0	1	0	0	0	0
0	0	0	0	1	0	0

0	0	0	0	0	1	0
0	1	0	0	0	0	0
0	0	0	0	1	0	0
0	0	0	1	0	0	0
0	0	1	0	0	0	0
1	0	0	0	0	0	0
0	0	0	0	0	0	1