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