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 | 45 |
| 2 | 1169 |
| 3 | 14178 |
| 4 | 102251 |
| 5 | 520017 |
| 6 | 2066505 |
| 7 | 6842284 |
| 8 | 19692165 |
| 9 | 50724037 |
| 10 | 119421753 |
| 11 | 261015470 |
| 12 | 535936479 |
| 13 | 1043365337 |
| 14 | 1940082033 |
| 15 | 3466044984 |
| 16 | 5978361865 |
| 17 | 9995569629 |
| 18 | 16254413569 |
| 19 | 25781605914 |
| 20 | 39983353235 |
| 21 | 60755768865 |
| 22 | 90619631609 |