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

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

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

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

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