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