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