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 | 10 |
| 2 | 74 |
| 3 | 714 |
| 4 | 1074 |
| 5 | 1070285 |
| 6 | 2270474 |
| 7 | 1206047449 |
| 8 | 67189697949 |
| 9 | 324723752049 |
| 10 | 23346424812260967349 |