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 | 8 |
| 3 | 28 |
| 4 | 116 |
| 5 | 474 |
| 6 | 2001 |
| 7 | 8508 |
| 8 | 37162 |
| 9 | 163730 |
| 10 | 729683 |
| 11 | 3269602 |
| 12 | 14773831 |