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