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 | 85 |
| 3 | 369 |
| 4 | 1243 |
| 5 | 15541 |
| 6 | 99682 |
| 7 | 514945 |
| 8 | 3977868 |
| 9 | 27131403 |
| 10 | 165041224 |
| 11 | 1128035711 |
| 12 | 7625285858 |
| 13 | 49170022362 |
| 14 | 326850563103 |
| 15 | 2183716617103 |
| 16 | 14348810814654 |
| 17 | 94917649585924 |
| 18 | 630373096158959 |
| 19 | 4164712261202289 |
| 20 | 27543277723412233 |