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