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 | 3 |
| 3 | 7 |
| 4 | 9 |
| 5 | 10 |
| 6 | 19 |
| 7 | 21 |
| 8 | 22 |
| 9 | 43 |
| 10 | 46 |
| 11 | 58 |
| 12 | 87 |
| 13 | 216 |
| 14 | 549 |
| 15 | 604 |
| 16 | 1147 |
| 17 | 1858 |
| 18 | 2952 |
| 19 | 3684 |
| 20 | 4057 |
| 21 | 4246 |
| 22 | 4354 |
| 23 | 8212 |
| 24 | 8289 |
| 25 | 9013 |
| 26 | 16968 |
| 27 | 19107 |
| 28 | 57754 |
| 29 | 61348 |
| 30 | 88254 |