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 | 1 |
| 2 | 4 |
| 3 | 7 |
| 4 | 26 |
| 5 | 68 |
| 6 | 75 |
| 7 | 236 |
| 8 | 940 |
| 9 | 1090 |
| 10 | 1105 |
| 11 | 2752 |
| 12 | 16645 |
| 13 | 20360 |
| 14 | 20790 |
| 15 | 20821 |
| 16 | 39208 |
| 17 | 360081 |
| 18 | 464111 |
| 19 | 477242 |
| 20 | 478376 |
| 21 | 478439 |
| 22 | 660032 |
| 23 | 9202170 |
| 24 | 12492277 |
| 25 | 12933423 |
| 26 | 12974826 |
| 27 | 12977688 |
| 28 | 12977815 |