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 | 3 |
| 2 | 19 |
| 3 | 53 |
| 4 | 61 |
| 5 | 197 |
| 6 | 211 |
| 7 | 443 |
| 8 | 491 |
| 9 | 839 |
| 10 | 1051 |
| 11 | 1249 |
| 12 | 1427 |
| 13 | 3701 |
| 14 | 17351 |
| 15 | 22247 |
| 16 | 53569 |
| 17 | 61927 |
| 18 | 128033 |