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 | 13 |
| 2 | 19 |
| 3 | 3 |
| 4 | 73 |
| 5 | 523 |
| 6 | 6581 |
| 7 | 10753 |
| 8 | 231643 |
| 9 | 387679 |
| 10 | 43103 |
| 11 | 255259 |
| 12 | 55457 |
| 13 | 28751773 |
| 14 | 328934789 |
| 15 | 278689963 |
| 16 | 784284211 |
| 17 | 4440915607 |
| 18 | 8340839629 |
| 19 | 30651695947 |