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