(0 17 15 11 9)(1 20 3)(2 13 8 6 4)(5 10 7)(12 16 14)(18 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 1 9)

(0)(1 17 15 11 9 20 3)(2 13 8 6 4)(5 10 7)(12 16 14)(18 21 19)
2: (3 9 20)

(0)(1 17 15 11 9)(2 13 8 6 4)(3)(5 10 7)(12 16 14)(18 21 19)(20)
3: (2 13 8)

(0)(1 17 15 11 9)(2 6 4)(3)(5 10 7)(8)(12 16 14)(13)(18 21 19)(20)
4: (1 17 9)

(0)(1)(2 6 4)(3)(5 10 7)(8)(9 15 11)(12 16 14)(13)(17)(18 21 19)(20)