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

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

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

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

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