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