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