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