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 | 11 |
| 4 | 23 |
| 5 | 76 |
| 6 | 149 |
| 7 | 431 |
| 8 | 539 |
| 9 | 659 |
| 10 | 1343 |
| 11 | 2678 |
| 12 | 2939 |
| 13 | 6524 |
| 14 | 6929 |
| 15 | 8414 |
| 16 | 8873 |
| 17 | 10027 |
| 18 | 25367 |
| 19 | 27299 |
| 20 | 87073 |
| 21 | 113071 |
| 22 | 122875 |
| 23 | 178595 |
| 24 | 185534 |
| 25 | 599237 |
| 26 | 1308195 |
| 27 | 1888172 |
| 28 | 4803699 |