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