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