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

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

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

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

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