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

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

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

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

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