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