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) |
|---|---|
| 2 | 3 |
| 3 | 13 |
| 4 | 17 |
| 5 | 71 |
| 6 | 43 |
| 7 | 4733 |
| 8 | 241 |
| 9 | 757 |
| 10 | 9091 |
| 11 | 1806113 |
| 12 | 20593 |
| 13 | 1803647 |
| 14 | 8108731 |
| 15 | 39225301 |
| 16 | 6700417 |
| 17 | 2699538733 |
| 18 | 465841 |
| 19 | 109912203092239643840221 |
| 20 | 222361 |
| 21 | 227633407 |
| 22 | 285451051007 |
| 23 | 1920647391913 |
| 24 | 1134793633 |
| 25 | 50150933101 |
| 26 | 3574533119 |
| 27 | 12557612956332313 |
| 28 | 1100860153 |