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

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

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

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

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