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 | 9 |
| 2 | 4 |
| 3 | 11 |
| 4 | 82 |
| 5 | 6131 |
| 6 | 4549 |
| 7 | 26735 |
| 8 | 8620 |
| 9 | 14923 |
| 10 | 20328 |
| 11 | 151439 |
| 12 | 227416 |
| 13 | 771341 |
| 14 | 2712159 |
| 15 | 2676962 |
| 16 | 2409266 |
| 17 | 4490404 |
| 18 | 4041364 |