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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 7 |
| 7 | 2881 |
| 8 | 15456 |
| 9 | 20930 |
| 10 | 26461 |
| 11 | 26772 |
| 12 | 43262 |
| 13 | 135536 |
| 14 | 271171 |
| 15 | 2118161 |
| 16 | 2362081 |
| 17 | 2545951 |
| 18 | 2779321 |
| 19 | 4236322 |
| 20 | 6354483 |
| 21 | 12936656 |
| 22 | 28666681 |
| 23 | 221782512 |
| 24 | 253676851 |
| 25 | 259202401 |
| 26 | 259828451 |
| 27 | 276025121 |
| 28 | 276949721 |
| 29 | 437593059 |
| 30 | 472911836 |
[1,2,3,4,5,7,2881,15456,20930,26461,26772,43262, 135536,271171,2118161,2362081,2545951,2779321, 4236322,6354483,12936656,28666681,221782512, 253676851,259202401,259828451,276025121,276949721, 437593059,472911836] |