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) |
|---|---|
| 0 | 2 |
| 1 | 11 |
| 2 | 87 |
| 3 | 582 |
| 4 | 4149 |
| 5 | 31985 |
| 6 | 261081 |
| 7 | 2208197 |
| 8 | 19132653 |
| 9 | 168806741 |
| 10 | 1510676803 |