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

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

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

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

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