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| n | a(n) |
|---|---|
| 0 | 45 |
| 1 | 165 |
| 2 | 825 |
| 3 | 4917 |
| 4 | 32505 |
| 5 | 229845 |
| 6 | 1703625 |
| 7 | 13072917 |
| 8 | 103008345 |
| 9 | 828707925 |
| 10 | 6779099625 |
| 11 | 56214660117 |
| 12 | 471424600185 |
| 13 | 3990804658005 |
| 14 | 34053173154825 |
| 15 | 292542431786517 |
| 16 | 2527742384720025 |
| 17 | 21950298188288085 |
| 18 | 191434401453597225 |
| 19 | 1675813243179972117 |
[45,165,825,4917,32505,229845,1703625,13072917, 103008345,828707925,6779099625,56214660117, 471424600185,3990804658005,34053173154825, 292542431786517,2527742384720025, 21950298188288085,191434401453597225, 1675813243179972117] |