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 | 2 |
| 3 | 158 |
| 4 | 301823 |
| 5 | 1851103 |
| 6 | 8616098 |
| 7 | 60528467 |
| 8 | 1087582634 |
| 9 | 1628818307 |
| 10 | 16205558969 |