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

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

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

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

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