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