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

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

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

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

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