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 | 79 |
| 3 | 241 |
| 4 | 727 |
| 5 | 19681 |
| 6 | 31381059607 |
| 7 | 450283905890997361 |
| 8 | 36472996377170786401 |
| 9 | 8727963568087712425891397479476727340041447 |
| 10 | 4638397686588101979328150167890591454318967698007 |