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

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

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

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

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