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 | 15 |
| 3 | 122 |
| 4 | 1128 |
| 5 | 10678 |
| 6 | 103421 |
| 7 | 1017326 |
| 8 | 10077684 |
| 9 | 100294216 |