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

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

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

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

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