(0 21 2)(1 7 3)(4 16 5)(6 11 8)(9 14 10 15 12)(13 19 17)(18 22 20)
ALLOWS (11/8)-SEQUENCE
1: (1 7 9)
(0 21 2)(1 14 10 15 12 9 3)(4 16 5)(6 11 8)(7)(13 19 17)(18 22 20)
2: (6 11 8)
(0 21 2)(1 14 10 15 12 9 3)(4 16 5)(6)(7)(8)(11)(13 19 17)(18 22 20)
3: (1 14 10)
(0 21 2)(1 15 12 9 3)(4 16 5)(6)(7)(8)(10)(11)(13 19 17)(14)(18 22 20)
4: (3 12 9)
(0 21 2)(1 15 12)(3)(4 16 5)(6)(7)(8)(9)(10)(11)(13 19 17)(14)(18 22 20)