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 | 2 |
| 2 | 28 |
| 3 | 1332 |
| 4 | 3928 |
| 5 | 16886 |
| 6 | 157576 |
| 7 | 192181 |
| 8 | 369440 |
| 9 | 378904 |
| 10 | 438814 |
| 11 | 504718 |
| 12 | 539873 |
| 13 | 847252 |
| 14 | 1291597 |
| 15 | 1708511 |
| 16 | 1837979 |
| 17 | 3416685 |
| 18 | 3914319 |
| 19 | 5739049 |
| 20 | 6021420 |
| 21 | 7370101 |
| 22 | 7634355 |
| 23 | 8608315 |
| 24 | 9660008 |
| 25 | 10378270 |
| 26 | 14797144 |
| 27 | 15423070 |
| 28 | 18450693 |