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 | 20 |
| 3 | 295 |
| 4 | 3828 |
| 5 | 46557 |
| 6 | 546286 |
| 7 | 6279393 |
| 8 | 71316632 |
| 9 | 804230945 |
| 10 | 9031118936 |
| 11 | 101161197895 |
| 12 | 1131456031256 |
| 13 | 12643706576681 |
| 14 | 141214773950750 |
| 15 | 1576695869980497 |
| 16 | 17600838146781308 |
| 17 | 196457931325141165 |