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

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

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

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

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