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