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 | 17 |
| 6 | 31 |
| 7 | 64 |
| 8 | 122 |
| 9 | 240 |
| 10 | 485 |
| 11 | 982 |
| 12 | 1961 |
| 13 | 3932 |
| 14 | 7898 |
| 15 | 15820 |
| 16 | 31729 |
| 17 | 63576 |
| 18 | 127354 |
| 19 | 255162 |
| 20 | 511014 |
| 21 | 1023398 |
| 22 | 2049132 |
| 23 | 4102601 |
| 24 | 8213244 |