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