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