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 | 8 |
| 3 | 99 |
| 4 | 2999 |
| 5 | 200798 |
| 6 | 30584687 |
| 7 | 10496827403 |
| 8 | 8147000813446 |
| 9 | 14279081380626859 |
| 10 | 56548869471250924613 |
| 11 | 505895767712482884973116 |
| 12 | 10224865987802162338842130221 |
| 13 | 466867871514396686081152537710131 |