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 | 5 |
| 5 | 10 |
| 6 | 13 |
| 7 | 18 |
| 8 | 31 |
| 9 | 49 |
| 10 | 98 |
| 11 | 116 |
| 12 | 232 |
| 13 | 281 |
| 14 | 397 |
| 15 | 678 |
| 16 | 1075 |
| 17 | 2150 |
| 18 | 3225 |
| 19 | 4300 |
| 20 | 5375 |
| 21 | 5772 |
| 22 | 6847 |
| 23 | 7922 |
| 24 | 8997 |
| 25 | 17994 |
| 26 | 19069 |