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

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

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

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

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