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 | 4 |
| 2 | 40369 |
| 3 | 673663 |
| 4 | 990409 |
| 5 | 1697609 |
| 6 | 2073127 |
| 7 | 6462649 |
| 8 | 7527199 |
| 9 | 7559479 |
| 10 | 14421169 |
| 11 | 21484129 |
| 12 | 37825753 |
| 13 | 57233047 |
| 14 | 130647919 |
| 15 | 141735559 |
| 16 | 179203369 |
| 17 | 188967289 |
| 18 | 218206489 |
| 19 | 259195009 |
| 20 | 264538057 |
| 21 | 277628449 |
| 22 | 330662479 |
| 23 | 398321239 |
| 24 | 501126487 |
| 25 | 506958313 |
| 26 | 612368311 |
| 27 | 767983759 |