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

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

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

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

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