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