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