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