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 | 4 |
| 2 | 46 |
| 3 | 468 |
| 4 | 5325 |
| 5 | 65575 |
| 6 | 737451 |
| 7 | 7948534 |
| 8 | 83168848 |
| 9 | 844383541 |
| 10 | 8470537436 |
| 11 | 85169381579 |