[(0, 1, 2, 3, 4, 5, 6, 7), (0, 1, 2, 8, 9, 10, 11, 12), (3, 4, 5, 9, 10, 11, 15, 16), (2, 4, 6, 8, 9, 13, 14, 16), (0, 3, 7, 8, 10, 13, 14, 15), (1, 6, 7, 11, 12, 14, 15, 16)] (if conjecture about Ferrers Diagram Rank-Metric Codes is true: 68719509665)
) : 68719480889