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

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

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

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

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