This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 83 |
| 3 | 223 |
| 4 | 2789 |
| 5 | 3347 |
| 6 | 4751 |
| 7 | 484439 |
| 8 | 10513 |
| 9 | 10909 |
| 10 | 2823167 |
| 11 | 68543 |
| 12 | 181141 |
| 13 | 6139219 |
| 14 | 488651 |
| 15 | 356479 |
| 16 | 399946711 |
| 17 | 22549349 |
| 18 | 8371249 |
| 19 | 660040873 |
| 20 | 12088631 |
| 21 | 3352003 |
| 22 | 234606268969 |
| 23 | 84343813 |
| 24 | 82751411 |
| 25 | 153722088497 |
| 26 | 141451831 |
| 27 | 11085190183 |
| 28 | 350552595007 |
| 29 | 535946951 |
| 30 | 658716229 |