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