(0 18 16 13 5)(1 20 14 4 3)(2 8 6)(7 11 9)(10 15 12)(17 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 2 8)
(0 6 2 18 16 13 5)(1 20 14 4 3)(7 11 9)(8)(10 15 12)(17 21 19)
2: (1 20 3)
(0 6 2 18 16 13 5)(1)(3 14 4)(7 11 9)(8)(10 15 12)(17 21 19)(20)
3: (2 18 5)
(0 6 2)(1)(3 14 4)(5 16 13)(7 11 9)(8)(10 15 12)(17 21 19)(18)(20)
4: (17 21 19)
(0 6 2)(1)(3 14 4)(5 16 13)(7 11 9)(8)(10 15 12)(17)(18)(19)(20)(21)