optimal [(0, 1, 2), (0, 3, 4), (0, 3, 5), (0, 5, 6), (1, 3, 6), (1, 4, 5), (2, 4, 6)] (if conjecture about Ferrers Diagram Rank-Metric Codes is true: 16781961 with optimal [(0, 1, 2), (0, 3, 4), (0, 3, 5), (0, 5, 6), (1, 3, 6), (1, 4, 5), (2, 4, 6)])
) : 16781961