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