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 | 8 |
| 3 | 9 |
| 4 | 46 |
| 5 | 172 |
| 6 | 1188 |
| 7 | 4708 |
| 8 | 28611 |
| 9 | 480644 |
| 10 | 785709 |
| 11 | 1061769 |
| 12 | 24947740 |
| 13 | 31585866 |
| 14 | 110275647 |
| 15 | 149612794 |
| 16 | 159273153 |
| 17 | 396643326 |
| 18 | 586740520 |
| 19 | 622899752 |
| 20 | 769642427 |
| 21 | 979286966 |
| 22 | 2603393493 |
| 23 | 4102885015 |
| 24 | 4313575355 |
| 25 | 5075807081 |
| 26 | 5890950206 |
| 27 | 16152068952 |
| 28 | 62853548947 |