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 | 54 |
| 3 | 242883 |
| 4 | 246962 |
| 5 | 261643 |
| 6 | 266001 |
| 7 | 353893 |
| 8 | 380287 |
| 9 | 425818 |
| 10 | 457055 |
| 11 | 542950 |
| 12 | 581942 |
| 13 | 595440 |
| 14 | 831264 |
| 15 | 917311 |
| 16 | 980235 |
| 17 | 1256341 |
| 18 | 1719654 |
| 19 | 6239931 |
| 20 | 8237549 |
| 21 | 8378312 |
| 22 | 10995744 |
| 23 | 11650985 |
| 24 | 15123420 |
| 25 | 15194370 |
| 26 | 15442721 |
| 27 | 19628056 |
| 28 | 20034738 |
| 29 | 20308106 |
| 30 | 26218271 |
| 31 | 36099782 |