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