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

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

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

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

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