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 | 4 |
| 3 | 6 |
| 4 | 14 |
| 5 | 22 |
| 6 | 115 |
| 7 | 55 |
| 8 | 105 |
| 9 | 155 |
| 10 | 145 |
| 11 | 341 |
| 12 | 501 |
| 13 | 489 |
| 14 | 143 |
| 15 | 437 |
| 16 | 301 |
| 17 | 395 |
| 18 | 665 |