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

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

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

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

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