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

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

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

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

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