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