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 | 163 |
| 2 | 9709 |
| 3 | 1080809 |
| 4 | 80892559 |
| 5 | 7257445621 |
| 6 | 626563120157 |
| 7 | 54444733905291 |
| 8 | 4738636777731819 |
| 9 | 412568744080021983 |
| 10 | 35937494222144972157 |
| 11 | 3131222717165356890307 |