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

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

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

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

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