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

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

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

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

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