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 | 4 |
| 4 | 9 |
| 5 | 12 |
| 6 | 14 |
| 7 | 19 |
| 8 | 26 |
| 9 | 28 |
| 10 | 72 |
| 11 | 79 |
| 12 | 273 |
| 13 | 565 |
| 14 | 990 |
| 15 | 1166 |
| 16 | 2205 |
| 17 | 4212 |
| 18 | 5340 |
| 19 | 5562 |
| 20 | 9877 |
| 21 | 10297 |
| 22 | 14316 |
| 23 | 35908 |
| 24 | 48410 |
| 25 | 61525 |