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 | 240 |
| 2 | 9295 |
| 3 | 123826 |
| 4 | 907249 |
| 5 | 4652710 |
| 6 | 18231947 |
| 7 | 59838132 |
| 8 | 169267931 |
| 9 | 429064420 |
| 10 | 989821179 |
| 11 | 2121738374 |
| 12 | 4261220223 |
| 13 | 8118682922 |
| 14 | 14752915881 |
| 15 | 25768412560 |
| 16 | 43419516045 |
| 17 | 70948741604 |