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

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

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

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

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