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 | 5 |
| 3 | 13 |
| 4 | 29 |
| 5 | 61 |
| 6 | 4157 |
| 7 | 284093 |
| 8 | 656100284093 |
| 9 | 20339100284093 |
| 10 | 3676497540347069 |
| 11 | 39705294559311037 |
| 12 | 417030640378385569837512131773 |
| 13 | 417030640384887681260010079421 |
| 14 | 329539483223485065027237875106125186237 |