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