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 | 2 |
| 3 | 14 |
| 4 | 116 |
| 5 | 780 |
| 6 | 6066 |
| 7 | 49510 |
| 8 | 417230 |
| 9 | 3631524 |
| 10 | 32070665 |
| 11 | 287366058 |