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

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

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

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

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