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 | 59 |
| 2 | 413 |
| 3 | 2018 |
| 4 | 48907 |
| 5 | 100284 |
| 6 | 869700 |
| 7 | 23094906 |
| 8 | 272703171 |