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

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

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

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

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