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