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 | 3 |
| 2 | 5 |
| 3 | 23 |
| 4 | 29 |
| 5 | 53 |
| 6 | 59 |
| 7 | 509 |
| 8 | 1019 |
| 9 | 2039 |
| 10 | 262133 |
| 11 | 262139 |
| 12 | 536870909 |
| 13 | 73786976294838206459 |
| 14 | 2787593149816327892691964784081045188247543 |