length n = 246
dimension k = 6
alphabet length q = 4

minimum distance d = 177

generator matrix:
000001111100000000000000011111111111111100000000000000011111111111111100000000001111111111000000000011111111111111111111000001111111111111111111111111000001111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
001110001100000011111111100000000011223300000011111111100000000011223300001111110000002233001111111100000000111111222333111110000011111111222222333333111110000011111111222222333333111111112222333311111111222222222223333333333311112222222233333333
110010010111111100000012300000012302010311111100000012300000012303020111110000230000230302110011112300111123000022011033111231112300022223011112013333111231112300023333012222011113111122231112133311122233111223333331122222233322331122333311222233
011100110000012311223300000012321300000000012311223300000012332100000000232233000023320000132301120313002213011201100003123232231312301123100221100133123232332112320113100122100331112211231121313323323323122131222331111233312223233313122322123312
110101001012321302010300012300000020103012332103020100012300000030201023320302002300003020231310211013120110202000101330213111231122320200112011333301321112131132303030222201113011121212131211331332321211323313123132323212321233222331313223231221
101011100021300020103021321321300000000032100030201032132132100000000032003020323232000000131322001323211003120110010300223132132321312013221100331010323212312332121301221010331100122121132111333133233232332221213123221113211332323233231132312122

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

010000
001000
100000
000010
000001
000100