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

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

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

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

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