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