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