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 | 3 |
| 2 | 4551 |
| 3 | 46775 |
| 4 | 82503 |
| 5 | 106976 |
| 6 | 1642796 |
| 7 | 4290771 |
| 8 | 4492203 |
| 9 | 4976427 |
| 10 | 21537831 |
| 11 | 21549347 |
| 12 | 21879936 |
| 13 | 51127259 |
| 14 | 56786087 |
| 15 | 60296571 |
| 16 | 80837771 |
| 17 | 87761787 |
| 18 | 94424463 |
| 19 | 96593696 |
| 20 | 138644871 |
| 21 | 168864999 |
| 22 | 221395539 |
| 23 | 255881451 |
| 24 | 297460451 |
| 25 | 305198247 |
| 26 | 360306363 |
| 27 | 562654203 |