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

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

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

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

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