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

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

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

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

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