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 | 3 |
| 2 | 183 |
| 3 | 10833 |
| 4 | 513903 |
| 5 | 39612503 |
| 6 | 8459809773 |
| 7 | 360255871643 |
| 8 | 37057831534783 |
| 9 | 4131064166006823 |
| 10 | 431284911997558083 |
| 11 | 48321459222257750543 |