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

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

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

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

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