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 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 13 |
| 6 | 36 |
| 7 | 103 |
| 8 | 301 |
| 9 | 902 |
| 10 | 2767 |
| 11 | 8637 |
| 12 | 27324 |
| 13 | 87409 |
| 14 | 282319 |
| 15 | 919352 |