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

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

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

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

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