length n = 231
dimension k = 5
alphabet length q = 4

minimum distance d = 171

generator matrix:
000010000000011111111111100000000111111111111000011111100001111111111111111000011111111111111110000111111111111111100001111111111111111000011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
000100011111100000011223300111111000000112233011100012311110000111111222333111100001111112223331111000011222223333311110000112222233333111100001122222333331111231111222333111111222222233333331111222333111122222222333333331122223333
001001100122300122300010311001233001233000201101301320011231123001122011033112311230011330220111222122233001330022313331333220023300122223322330001233012231112131223112133112233112233311222331233122113223311223333112222332312331223
010001213201023001302100013123001230201030010320312000312131213120201101303132113211303012021012233313302123232200032232122033300013223131223232330301200121121132123121313231312132312312123233213212131232323331123231123223231232231
100002123010313210020003031320210213010302000312020301021132113212010110330312131213130102201103313232320330001312221223223301231322000322331123233020223001211132213211331323121313212321123323231221311323233132312222331123223313122

projective group of automorphisms generated by:
10000
00010
00001
01000
00100

01000
00100
00001
00010
10000