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

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

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

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

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