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