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