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