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