(0 17 5)(1 15 4)(2 20 3)(6 11 9)(7 19 8)(10 14 12)(13 18 16)
ALLOWS (11/8)-SEQUENCE
1: (3 15 20)
(0 17 5)(1 15 2 20 4)(3)(6 11 9)(7 19 8)(10 14 12)(13 18 16)
2: (1 15 4)
(0 17 5)(1)(2 20 4)(3)(6 11 9)(7 19 8)(10 14 12)(13 18 16)(15)
3: (0 17 5)
(0)(1)(2 20 4)(3)(5)(6 11 9)(7 19 8)(10 14 12)(13 18 16)(15)(17)
4: (13 18 16)
(0)(1)(2 20 4)(3)(5)(6 11 9)(7 19 8)(10 14 12)(13)(15)(16)(17)(18)