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 | 7 |
| 3 | 11 |
| 4 | 13 |
| 5 | 47 |
| 6 | 127 |
| 7 | 149 |
| 8 | 181 |
| 9 | 619 |
| 10 | 929 |
| 11 | 3407 |
| 12 | 10949 |
| 13 | 13241 |
| 14 | 13873 |
| 15 | 16519 |
| 16 | 201359 |
| 17 | 396413 |
| 18 | 1888279 |
| 19 | 3300593 |