length n = 71
dimension k = 7
alphabet length q = 3

minimum distance d = 42

generator matrix:
00000000000000000000000011111111111111111100011111111111111111101111111
00000000000011111111111100000000000011222211100011111122222222210112221
00011111111100000000012200000000012202001211211200222201111222222120121
11100000012200000012221200011222200000000022112212122220122001111221021
00000012221211222200000012202001200000000022222122201121012120221022211
12212221200002001200000000020120000020120012121122020212221112022211201
21221200000020120021200021200000021200000021222221212012200211112202111

projective group of automorphisms generated by:
0100000
0000100
0000001
1000000
0010000
0000010
0001000

0010000
0001000
0000100
1000000
0000001
0100000
0000010