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

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

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

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

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