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