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

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

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

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

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