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

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

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

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

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