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