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 | 194 |
| 3 | 3434 |
| 4 | 29356 |
| 5 | 162190 |
| 6 | 679654 |
| 7 | 2323878 |
| 8 | 6839595 |
| 9 | 17909922 |
| 10 | 42675551 |
| 11 | 94125356 |
| 12 | 194693240 |
| 13 | 381214450 |
| 14 | 712191373 |
| 15 | 1277323894 |
| 16 | 2210486280 |
| 17 | 3706015236 |
| 18 | 6040816887 |
| 19 | 9601083812 |
| 20 | 14916225896 |
| 21 | 22701123860 |
| 22 | 33905935285 |