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