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

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

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

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

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