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 | 2727014580 |
| 3 | 526323690 |
| 4 | 342324801 |
| 5 | 1125252600 |
| 6 | 2373480208 |
| 7 | 128982894600 |
| 8 | 72514770528 |
| 9 | 47794089850 |
| 10 | 91641847675 |
| 11 | 300187699944 |
| 12 | 292567324441 |
| 13 | 2529713006600 |
| 14 | 342239511285 |
| 15 | 1287696341932 |