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

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

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

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

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