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 | 50 |
| 2 | 684 |
| 3 | 4739 |
| 4 | 22988 |
| 5 | 87878 |
| 6 | 282372 |
| 7 | 794220 |
| 8 | 2010035 |
| 9 | 4668304 |
| 10 | 10095924 |
| 11 | 20559019 |
| 12 | 39765666 |
| 13 | 73565736 |
| 14 | 130901340 |
| 15 | 225070360 |
| 16 | 375375241 |
| 17 | 609239622 |
| 18 | 964886492 |
| 19 | 1494683371 |
| 20 | 2269272536 |
| 21 | 3382617538 |
| 22 | 4958111188 |
| 23 | 7155904828 |
| 24 | 10181634047 |