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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 12 |
| 3 | 87 |
| 4 | 212 |
| 5 | 212 |
| 6 | 9587 |
| 7 | 56462 |
| 8 | 212712 |
| 9 | 603337 |
| 10 | 4509587 |
| 11 | 4509587 |
| 12 | 4509587 |
| 13 | 4509587 |
| 14 | 2445915837 |
| 15 | 20756462712 |
| 16 | 142826775212 |
| 17 | 600590447087 |
| 18 | 2889408806462 |
| 19 | 18148197868962 |
| 20 | 94442143181462 |
| 21 | 94442143181462 |
| 22 | 1524953617790837 |
| 23 | 6293325199822087 |
| 24 | 6293325199822087 |
| 25 | 125502614750603337 |
[0,2,12,87,212,212,9587,56462,212712,603337, 4509587,4509587,4509587,4509587,2445915837, 20756462712,142826775212,600590447087, 2889408806462,18148197868962,94442143181462, 94442143181462,1524953617790837,6293325199822087, 6293325199822087,125502614750603337] |