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 | 2 |
| 3 | 3 |
| 4 | 8 |
| 5 | 9 |
| 6 | 15 |
| 7 | 26 |
| 8 | 30 |
| 9 | 69 |
| 10 | 212 |
| 11 | 318 |
| 12 | 909 |
| 13 | 1224 |
| 14 | 1946 |
| 15 | 2192 |
| 16 | 2234 |
| 17 | 2978 |
| 18 | 3344 |
| 19 | 4976 |
| 20 | 7947 |
| 21 | 8079 |
| 22 | 23334 |
| 23 | 23624 |
| 24 | 55401 |
| 25 | 89712 |