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