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 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 12 |
| 4 | 32 |
| 5 | 84 |
| 6 | 211 |
| 7 | 556 |
| 8 | 1446 |
| 9 | 3750 |
| 10 | 9824 |
| 11 | 25837 |
| 12 | 67681 |
| 13 | 178160 |
| 14 | 468941 |
| 15 | 1233837 |
| 16 | 3248788 |
| 17 | 8554709 |