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