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