length n = 237
dimension k = 6
alphabet length q = 4

minimum distance d = 172

generator matrix:
000001000000000000000111111111111111000000000011111111110000011111000000000011111111110000000000111111111111111111110000011111111111111111111111110000011111111111111111111111111111111111111111111111111111111111111111111111111111111111111
000010000000111111111000000000112233000011111100000022330011100011000011111100000022330011111111000000001111112223331111100000111111112222223333331111100000111122222222333333331111111122223333111122233311111111222222222223333333333312233
000100000111000112233000112233000000001100223300223300001100100101111100002300002303021100111123001111230000330220111223312233011122330011220011331223312233033300222333001112221111233312221113123312211311122233111223333331122222233321323
001000111123123000000000030201030201112323000000030203020101111000002300233222330000001212003321230113200113012000011121331211303302031202221103113231221323202213011033230220331133211321221131221321113323323323233221112232311122311333221
010000123000321030201123302010000000230032030223302000001110001010233223000003020030203212130101211031013030002021103223132213130322112120011330012132323132330332303202212021011313213122121311213321231132321211323131231333212323212223132
100000321321000302010321000000302010323200302032000030201011010100320032320030203200001232311020213300211301100201003211112131333020302222103111102313233221222031330110323302201331231122213111223112133133233232221313212321132113321232312

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

010000
000001
000010
001000
000100
100000