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 | 4 |
| 3 | 49 |
| 4 | 524 |
| 5 | 5596 |
| 6 | 58706 |
| 7 | 608886 |
| 8 | 6267854 |
| 9 | 64180304 |
| 10 | 654605898 |
| 11 | 6656849267 |
| 12 | 67539297095 |
| 13 | 683989985496 |
| 14 | 6916722312963 |
| 15 | 69859080168037 |