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