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 | 239 |
| 2 | 4569 |
| 3 | 33305 |
| 4 | 148433 |
| 5 | 491429 |
| 6 | 1333683 |
| 7 | 3139529 |
| 8 | 6641881 |
| 9 | 12930475 |
| 10 | 23552717 |
| 11 | 40627137 |
| 12 | 66969449 |
| 13 | 106231217 |
| 14 | 163051127 |
| 15 | 243218865 |
| 16 | 353851601 |
| 17 | 503583079 |
| 18 | 702765313 |
| 19 | 963682889 |
| 20 | 1300779873 |
| 21 | 1730899325 |
| 22 | 2273535419 |
| 23 | 2951098169 |