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

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

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

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

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