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

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

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

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

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