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 | 38 |
| 3 | 110 |
| 4 | 3066 |
| 5 | 60020 |
| 6 | 740282 |
| 7 | 2340038 |
| 8 | 29380602 |
| 9 | 957565746 |
| 10 | 31043311588 |
| 11 | 569424748566 |
| 12 | 7207204117608 |
| 13 | 10871205353578 |
| 14 | 196523412770096 |
| 15 | 2665506690112870 |
| 16 | 122498079071529726 |