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 | 643905 |
| 2 | 680061 |
| 3 | 720558 |
| 4 | 775113 |
| 5 | 840501 |
| 6 | 878613 |
| 7 | 984927 |