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 | 5 |
| 3 | 13 |
| 4 | 47 |
| 5 | 59 |
| 6 | 109 |
| 7 | 241 |
| 8 | 631 |
| 9 | 1109 |
| 10 | 1373 |
| 11 | 1447 |
| 12 | 16229 |
| 13 | 52267 |
| 14 | 56543 |
| 15 | 838441 |
| 16 | 16935761 |
| 17 | 270704167 |
| 18 | 3296757029 |