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 | 323 |
| 3 | 3887 |
| 4 | 5183 |
| 5 | 149903 |
| 6 | 311790 |
| 7 | 777923 |
| 8 | 1327103 |
| 9 | 6718463 |
| 10 | 12446783 |
| 11 | 14605487 |
| 12 | 16402499 |
| 13 | 20373435 |
| 14 | 28128270 |
| 15 | 30856494 |
| 16 | 33144430 |
| 17 | 37058230 |
| 18 | 37380745 |
| 19 | 68661901 |
| 20 | 86755609 |
| 21 | 139557721 |
| 22 | 159954570 |
| 23 | 221294682 |
| 24 | 222538813 |
| 25 | 229159043 |
| 26 | 269108440 |
| 27 | 360590058 |
| 28 | 412621345 |