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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 5 |
| 7 | 25 |
| 8 | 27 |
| 9 | 26 |
| 10 | 676 |
| 11 | 678 |
| 12 | 677 |
| 13 | 458329 |
| 14 | 458331 |
| 15 | 458330 |
| 16 | 210066388900 |
| 17 | 210066388902 |
| 18 | 210066388901 |
| 19 | 44127887745906175987801 |
| 20 | 44127887745906175987803 |
| 21 | 44127887745906175987802 |