RESULT tight_exh n=5 k=2 part=0/1 {'root_tuples': 5, 'nodes': 1416, 'complete': 1416, 'no_arb': 0, 'max_families': 8, 'threeset_complete': 0, 'crosschecked': 1416, 'seconds': 0.1}
distinct instances (arcs, multiset of (root, set)): 1036
