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