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

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

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

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

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