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

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

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

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

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