length n = 71
dimension k = 6
alphabet length q = 4

minimum distance d = 49

generator matrix:
00001111111111111111111111111111000000000001111111111111111111111111111
11110000000011112222333333333333011111111110000000000111111222222333333
12220001112302230133000011111223100111112220001112333011113000122001223
22330130332320222003002312222000223123330000130120112300221233201220011
33133202120302030011020200113133132011332230300320221302022133001113010
02122131112322233133112213023000011032130131212231033233021202332011311

by truncation of 72