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 | 3 |
| 3 | 11 |
| 4 | 17 |
| 5 | 67 |
| 6 | 101 |
| 7 | 1609 |
| 8 | 1811 |
| 9 | 7243 |
| 10 | 43457 |
| 11 | 108643 |
| 12 | 488893 |
| 13 | 5214857 |
| 14 | 23466857 |
| 15 | 938674273 |
| 16 | 3872031377 |
| 17 | 29040235327 |
| 18 | 542084392769 |
| 19 | 65659972074139 |
| 20 | 3179324963589889 |
| 21 | 58420096205964211 |
| 22 | 1849969713188866681 |
| 23 | 76465414811806489481 |
| 24 | 1881049204370439641233 |
| 25 | 94052460218521982061649 |