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 | 7 |
| 3 | 97 |
| 4 | 577 |
| 5 | 7507 |
| 6 | 217717 |
| 7 | 5232727 |
| 8 | 75172597 |
| 9 | 1617423307 |
| 10 | 59844662377 |
| 11 | 2750790860317 |
| 12 | 109455887488447 |
| 13 | 4621264673452927 |
| 14 | 218071376383127767 |
| 15 | 10914293640945722527 |
| 16 | 662082573402158125717 |
| 17 | 41249727342503299116997 |