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 | 35 |
| 2 | 1225 |
| 3 | 25410 |
| 4 | 358118 |
| 5 | 3770722 |
| 6 | 31585056 |
| 7 | 219861244 |
| 8 | 1312747586 |
| 9 | 6885325482 |
| 10 | 32313530946 |
| 11 | 137690265950 |
| 12 | 539018300034 |
| 13 | 1957451099304 |
| 14 | 6647631120056 |
| 15 | 21256016741041 |
| 16 | 64364748455011 |
| 17 | 185491652223781 |
| 18 | 510953158157281 |