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

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

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

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

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