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

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

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

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

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