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| n | a(n) |
|---|---|
| 1 | 2581 |
| 2 | 3712 |
| 3 | 5025 |
| 4 | 7570 |
| 5 | 12522 |
| 6 | 21186 |
| 7 | 37337 |
| 8 | 68096 |
| 9 | 124387 |
| 10 | 231325 |
| 11 | 437943 |
| 12 | 826729 |
| 13 | 1573451 |
| 14 | 3026541 |
| 15 | 5799316 |
| 16 | 11168884 |
| 17 | 21666676 |
| 18 | 41896587 |
| 19 | 81298755 |
| 20 | 158474687 |
| 21 | 308340366 |
| 22 | 601219256 |
| 23 | 1175888798 |
| 24 | 2297341782 |
| 25 | 4494637959 |
| 26 | 8811577756 |
[2581,3712,5025,7570,12522,21186,37337,68096, 124387,231325,437943,826729,1573451,3026541, 5799316,11168884,21666676,41896587,81298755, 158474687,308340366,601219256,1175888798, 2297341782,4494637959,8811577756] |