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 | 0 |
| 2 | 25 |
| 3 | 279 |
| 4 | 3363 |
| 5 | 39395 |
| 6 | 485191 |
| 7 | 5269618 |
| 8 | 56745409 |
| 9 | 607655311 |
| 10 | 6578438247 |
| 11 | 68950399755 |