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 | 1 |
| 1 | 18 |
| 2 | 324 |
| 3 | 5658 |
| 4 | 98766 |
| 5 | 1683597 |
| 6 | 28677387 |
| 7 | 479763588 |
| 8 | 8014917042 |
| 9 | 132060434889 |
| 10 | 2170519816231 |