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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 45 |
| 2 | 1085 |
| 3 | 20925 |
| 4 | 366141 |
| 5 | 6120765 |
| 6 | 100080445 |
| 7 | 1618667325 |
| 8 | 26038501181 |
| 9 | 417737748285 |
| 10 | 6692790374205 |
| 11 | 107156587499325 |
| 12 | 1715081133346621 |
| 13 | 27445904805580605 |
| 14 | 439171333486530365 |
| 15 | 7027036201446788925 |
| 16 | 112434938199985606461 |
| 17 | 1798977883220621905725 |
[1,45,1085,20925,366141,6120765,100080445, 1618667325,26038501181,417737748285,6692790374205, 107156587499325,1715081133346621, 27445904805580605,439171333486530365, 7027036201446788925,112434938199985606461, 1798977883220621905725] |