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

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

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

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

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