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

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

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

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

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