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 | 301 |
| 2 | 602 |
| 3 | 1113 |
| 4 | 4942 |
| 5 | 478205 |
| 6 | 23942940 |
| 7 | 47885880 |
| 8 | 178114489749 |