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

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

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

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

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