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

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

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

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

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