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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 491 |
| 3 | 491 |
| 4 | 2830 |
| 5 | 6138 |
| 6 | 2830 |
| 7 | 14206 |
| 8 | 71355 |
| 9 | 71355 |
| 10 | 14206 |
| 11 | 68508 |
| 12 | 717013 |
| 13 | 1649549 |
| 14 | 717013 |
| 15 | 68508 |
| 16 | 311076 |
| 17 | 7041879 |
| 18 | 30972970 |
| 19 | 30972970 |
| 20 | 7041879 |
| 21 | 311076 |
| 22 | 1375313 |
| 23 | 65935448 |
| 24 | 560385415 |
| 25 | 1099532113 |
| 26 | 560385415 |
| 27 | 65935448 |
| 28 | 1375313 |
| 29 | 5904417 |
[81,491,491,2830,6138,2830,14206,71355,71355, 14206,68508,717013,1649549,717013,68508,311076, 7041879,30972970,30972970,7041879,311076,1375313, 65935448,560385415,1099532113,560385415,65935448, 1375313,5904417] |