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 | 7 |
| 2 | 25 |
| 3 | 313 |
| 4 | 48985 |
| 5 | 1199765113 |
| 6 | 719718163185951385 |
| 7 | 258997117209879873736794713791709113 |
| 8 | 33539753361514126736178628392779244498735703225085922505721228803623385 |