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