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