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 | 22 |
| 2 | 242 |
| 3 | 464 |
| 4 | 868 |
| 5 | 4664 |
| 6 | 8668 |
| 7 | 40604 |
| 8 | 44644 |
| 9 | 48684 |
| 10 | 80608 |
| 11 | 84648 |
| 12 | 88688 |
| 13 | 406604 |
| 14 | 446644 |
| 15 | 486684 |
| 16 | 806608 |
| 17 | 846648 |
| 18 | 886688 |
| 19 | 4006004 |
| 20 | 4046404 |
| 21 | 4086804 |
| 22 | 4406044 |
| 23 | 4446444 |
| 24 | 4486844 |
| 25 | 4806084 |
| 26 | 4846484 |
| 27 | 4886884 |
| 28 | 8006008 |
| 29 | 8046408 |
| 30 | 8086808 |