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

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

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

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

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