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) |
|---|---|
| 0 | -7 |
| 1 | -8 |
| 2 | -6 |
| 3 | 43 |
| 4 | 50 |
| 5 | 2101 |
| 6 | 57 |
| 7 | 102943 |
| 8 | 2402 |
| 9 | 117307 |
| 10 | 2801 |
| 11 | 247165843 |
| 12 | 2353 |
| 13 | 12111126301 |
| 14 | 137257 |
| 15 | 6568801 |
| 16 | 5764802 |
| 17 | 29078814248401 |
| 18 | 117993 |
| 19 | 1424861898171643 |
| 20 | 5649505 |
| 21 | 15772610449 |
| 22 | 329554457 |
| 23 | 3421093417510114543 |
| 24 | 5762401 |
| 25 | 79787519018560501 |
| 26 | 16148168401 |
| 27 | 1628413557556843 |