length n = 47
dimension k = 4
alphabet length q = 7

minimum distance d = 39

generator matrix:
01111111111000011111111001111111111111111111111
10124445666111101114556110022445566001112222456
52321356356123355562265252634352536060360023200
20165502623050511206046115016363044214424515323

by truncation of 48