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

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

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

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

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