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