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

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

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

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

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