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

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

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

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

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