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

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

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

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

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