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| n | a(n) |
|---|---|
| 1 | 27 |
| 2 | 293 |
| 3 | 1509 |
| 4 | 5205 |
| 5 | 14063 |
| 6 | 32267 |
| 7 | 65773 |
| 8 | 122709 |
| 9 | 213697 |
| 10 | 352075 |
| 11 | 554381 |
| 12 | 840659 |
| 13 | 1234569 |
| 14 | 1764039 |
| 15 | 2461495 |
| 16 | 3363883 |
| 17 | 4513485 |
| 18 | 5958085 |
| 19 | 7750859 |
| 20 | 9951423 |
| 21 | 12625883 |
| 22 | 15846605 |
| 23 | 19693499 |
| 24 | 24253977 |
| 25 | 29622535 |
| 26 | 35902357 |
| 27 | 43205125 |
| 28 | 51650425 |
[27,293,1509,5205,14063,32267,65773,122709,213697, 352075,554381,840659,1234569,1764039,2461495, 3363883,4513485,5958085,7750859,9951423,12625883, 15846605,19693499,24253977,29622535,35902357, 43205125,51650425] |