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

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

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

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

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