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

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

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

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

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