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 | 11 |
| 1 | 10 |
| 2 | 12 |
| 3 | 133 |
| 4 | 122 |
| 5 | 16105 |
| 6 | 111 |
| 7 | 1948717 |
| 8 | 14642 |
| 9 | 1772893 |
| 10 | 13421 |
| 11 | 28531167061 |
| 12 | 14521 |
| 13 | 3452271214393 |
| 14 | 1623931 |
| 15 | 195019441 |
| 16 | 214358882 |
| 17 | 50544702849929377 |
| 18 | 1770231 |
| 19 | 6115909044841454629 |
| 20 | 212601841 |