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

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

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

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

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