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

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

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

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

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