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

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

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

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

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