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 | 16383 |
| 1 | 2080895 |
| 2 | 14927751 |
| 3 | 23910809 |
| 4 | 28666538 |
| 5 | 31093963 |
| 6 | 235133342 |
| 7 | 369942023 |
| 8 | 442559275 |
| 9 | 477097165 |
| 10 | 648119035 |
| 11 | 859596605 |
| 12 | 1185760538 |
| 13 | 1394986404 |
| 14 | 2327766446 |
| 15 | 3865843796 |
| 16 | 4475888762 |
| 17 | 9264877532 |
| 18 | 13979773625 |