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

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

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

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

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