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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 37 |
| 4 | 82 |
| 5 | 590 |
| 6 | 1307 |
| 7 | 9403 |
| 8 | 20830 |
| 9 | 149858 |
| 10 | 331973 |
| 11 | 2388325 |
| 12 | 5290738 |
| 13 | 38063342 |
| 14 | 84319835 |
| 15 | 606625147 |
| 16 | 1343826622 |
| 17 | 9667939010 |
| 18 | 21416906117 |
| 19 | 154080399013 |
| 20 | 341326671250 |
| 21 | 2455618445198 |
| 22 | 5439809833883 |
| 23 | 39135814724155 |
| 24 | 86695630670878 |
[2,5,37,82,590,1307,9403,20830,149858,331973, 2388325,5290738,38063342,84319835,606625147, 1343826622,9667939010,21416906117,154080399013, 341326671250,2455618445198,5439809833883, 39135814724155,86695630670878] |