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