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