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

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

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

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

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