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 | 2 |
| 2 | 354 |
| 3 | 4200 |
| 4 | 34776 |
| 5 | 107990 |
| 6 | 475370 |
| 7 | 978568 |
| 8 | 2790760 |
| 9 | 5647886 |
| 10 | 11787078 |
| 11 | 17703910 |
| 12 | 41527872 |
| 13 | 57261832 |