|
Total
|
Solution Set
|
|--- |--- |
|9|4,2,3; 5,3,1; 6,1,2|
|9|4,3,2; 6,2,1; 5,1,3|
|10|2,3,5; 4,5,1; 6,1,3|
|10|2,5,3; 6,3,1; 4,1,5|
|11|1,4,6; 3,6,2; 5,2,4|
|11|1,6,4; 5,4,2; 3,2,6|
|12|1,5,6; 2,6,4; 3,4,5|
|12|1,6,5; 3,5,4; 2,4,6|
By concatenating each group it is possible to form 9-digit strings; the maximum string for a 3-gon ring is 432621513.
Using the numbers 1 to 10, and depending on arrangements, it is possible to form 16- and 17-digit strings. What is the maximum