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

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

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

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

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