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 | 395191 |
| 3 | 697717 |
| 4 | 1078323 |
| 5 | 2050797 |
| 6 | 10543929 |
| 7 | 386099691 |
| 8 | 2467825171 |
| 9 | 4488040933 |
| 10 | 17387575533 |
| 11 | 39641205433 |
| 12 | 825688143387 |
| 13 | 2800262033655 |
| 14 | 3214748608393 |
| 15 | 5174884331693 |
| 16 | 16485974355373 |
| 17 | 20683624349423 |
| 18 | 34390023299149 |
| 19 | 629341300687639 |