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| n | a(n) |
|---|---|
| 1 | 586508 |
| 2 | 1412248 |
| 3 | 3475823 |
| 4 | 9912158 |
| 5 | 22791266 |
| 6 | 64180262 |
| 7 | 174169154 |
| 8 | 449672470 |
| 9 | 1181178372 |
| 10 | 3178180769 |
| 11 | 8577622338 |
| 12 | 23374338451 |
| 13 | 63619374492 |
| 14 | 172838948499 |
| 15 | 469793624214 |
| 16 | 1279801193242 |
| 17 | 3487993255848 |
| 18 | 9516902005493 |
| 19 | 25974718805164 |
[586508,1412248,3475823,9912158,22791266,64180262, 174169154,449672470,1181178372,3178180769, 8577622338,23374338451,63619374492,172838948499, 469793624214,1279801193242,3487993255848, 9516902005493,25974718805164] |