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