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