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) |
|---|---|
| 0 | 5 |
| 1 | 6 |
| 2 | 11 |
| 3 | 39 |
| 4 | 206 |
| 5 | 657 |
| 6 | 863 |
| 7 | 1520 |
| 8 | 16063 |
| 9 | 17583 |
| 10 | 33646 |
| 11 | 118521 |
| 12 | 626251 |
| 13 | 1997274 |
| 14 | 2623525 |
| 15 | 4620799 |
| 16 | 48831515 |
| 17 | 53452314 |
| 18 | 102283829 |
| 19 | 360303801 |
| 20 | 1903802834 |
| 21 | 6071712303 |
| 22 | 7975515137 |
| 23 | 14047227440 |
| 24 | 148447789537 |