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