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

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

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

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

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