| n | a(n) |
|---|---|
| 1 | 553 |
| 2 | 1033 |
| 3 | 2009 |
| 4 | 3997 |
| 5 | 8051 |
| 6 | 16683 |
| 7 | 34695 |
| 8 | 72269 |
| 9 | 150677 |
| 10 | 318575 |
| 11 | 671847 |
| 12 | 1413661 |
| 13 | 2970293 |
| 14 | 6314241 |
| 15 | 13372035 |
| 16 | 28225763 |
| 17 | 59454011 |
| 18 | 126633283 |
| 19 | 268599173 |
| 20 | 567619549 |
| 21 | 1196758327 |
| 22 | 2551010159 |
| 23 | 5414437825 |
| 24 | 11447235523 |
| 25 | 24144688307 |
[553,1033,2009,3997,8051,16683,34695,72269,150677, 318575,671847,1413661,2970293,6314241,13372035, 28225763,59454011,126633283,268599173,567619549, 1196758327,2551010159,5414437825,11447235523, 24144688307] |