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