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 | 41 |
| 2 | 43 |
| 3 | 47 |
| 4 | 71 |
| 5 | 103 |
| 6 | 167 |
| 7 | 1063 |
| 8 | 2087 |
| 9 | 8231 |
| 10 | 131111 |
| 11 | 536870951 |
| 12 | 8589934631 |
| 13 | 549755813927 |
| 14 | 8796093022247 |
| 15 | 154742504910672534362390567 |
| 16 | 40564819207303340847894502572071 |
| 17 | 162259276829213363391578010288167 |
| 18 | 2722258935367507707706996859454145691687 |