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