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

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

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

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

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