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) |
|---|---|
| 0 | 1 |
| 1 | 43 |
| 2 | 369 |
| 3 | 1507 |
| 4 | 4273 |
| 5 | 9771 |
| 6 | 19393 |
| 7 | 34819 |
| 8 | 58017 |
| 9 | 91243 |
| 10 | 137041 |
| 11 | 198243 |
| 12 | 277969 |
| 13 | 379627 |
| 14 | 506913 |
| 15 | 663811 |
| 16 | 854593 |
| 17 | 1083819 |
| 18 | 1356337 |
| 19 | 1677283 |
| 20 | 2052081 |
| 21 | 2486443 |
| 22 | 2986369 |
| 23 | 3558147 |
| 24 | 4208353 |
| 25 | 4943851 |
| 26 | 5771793 |
| 27 | 6699619 |
| 28 | 7735057 |
| 29 | 8886123 |
| 30 | 10161121 |
| 31 | 11568643 |