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