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 | 9 |
| 3 | 66 |
| 4 | 561 |
| 5 | 4877 |
| 6 | 43685 |
| 7 | 399564 |
| 8 | 3694303 |
| 9 | 34433999 |
| 10 | 322852288 |
| 11 | 3041362298 |
| 12 | 28758431735 |
| 13 | 272777483044 |
| 14 | 2594081699837 |