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

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

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

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

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