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| n | a(n) |
|---|---|
| 1 | 217 |
| 2 | 2029 |
| 3 | 17024 |
| 4 | 141857 |
| 5 | 1155519 |
| 6 | 9376751 |
| 7 | 75647740 |
| 8 | 609534839 |
| 9 | 4903892459 |
| 10 | 39438538201 |
| 11 | 317050695780 |
| 12 | 2548528796645 |
| 13 | 20483568025431 |
| 14 | 164629748544475 |
| 15 | 1323120367104228 |
| 16 | 10633755035857083 |
| 17 | 85461577059693963 |
| 18 | 686837682555429189 |
[217,2029,17024,141857,1155519,9376751,75647740, 609534839,4903892459,39438538201,317050695780, 2548528796645,20483568025431,164629748544475, 1323120367104228,10633755035857083, 85461577059693963,686837682555429189] |