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 | 5 |
| 2 | 537 |
| 3 | 4556 |
| 4 | 78679 |
| 5 | 1218385 |
| 6 | 19457754 |
| 7 | 306224454 |
| 8 | 4895684572 |
| 9 | 77683246701 |
| 10 | 1234426654421 |
| 11 | 19631272724800 |
| 12 | 312041675243059 |
| 13 | 4960178416591981 |
| 14 | 78856852121294934 |
| 15 | 1253577822147874492 |
| 16 | 19928141716104516026 |