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 | 3467 |
| 2 | 6947 |
| 3 | 13907 |
| 4 | 27827 |
| 5 | 55667 |
| 6 | 111347 |
| 7 | 222707 |
| 8 | 445427 |
| 9 | 890867 |