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

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

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

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

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