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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 11 |
| 3 | 45 |
| 4 | 173 |
| 5 | 693 |
| 6 | 2765 |
| 7 | 11061 |
| 8 | 44237 |
| 9 | 176949 |
| 10 | 707789 |
| 11 | 2831157 |
| 12 | 11324621 |
| 13 | 45298485 |
| 14 | 181193933 |
| 15 | 724775733 |
| 16 | 2899102925 |
| 17 | 11596411701 |
| 18 | 46385646797 |
| 19 | 185542587189 |
| 20 | 742170348749 |
| 21 | 2968681394997 |
| 22 | 11874725579981 |
| 23 | 47498902319925 |
[5,11,45,173,693,2765,11061,44237,176949,707789, 2831157,11324621,45298485,181193933,724775733, 2899102925,11596411701,46385646797,185542587189, 742170348749,2968681394997,11874725579981, 47498902319925] |