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

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

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

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

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