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