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