(0 20 7 5 3)(1 4 2)(6 11 8)(9 18 12 19 17)(10 15 13)(14 21 16)
ALLOWS (11/8)-SEQUENCE
1: (0 9 18)
(0 12 19 17 9 20 7 5 3)(1 4 2)(6 11 8)(10 15 13)(14 21 16)(18)
2: (7 19 17)
(0 12 19 5 3)(1 4 2)(6 11 8)(7 9 20)(10 15 13)(14 21 16)(17)(18)
3: (6 11 8)
(0 12 19 5 3)(1 4 2)(6)(7 9 20)(8)(10 15 13)(11)(14 21 16)(17)(18)
4: (5 12 19)
(0 12 3)(1 4 2)(5)(6)(7 9 20)(8)(10 15 13)(11)(14 21 16)(17)(18)(19)