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