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

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

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

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

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