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