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 | 70 |
| 2 | 836 |
| 3 | 1372630 |
| 4 | 2384270 |
| 5 | 25206790 |
| 6 | 31463110 |
| 7 | 251684230 |
| 8 | 2013240988 |
| 9 | 200598443570 |