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