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 | 46 |
| 2 | 5 |
| 3 | 43 |
| 4 | 1 |
| 5 | 2021 |
| 6 | 121 |
| 7 | 25202 |
| 8 | 2521 |
| 9 | 162121 |
| 10 | 460801 |
| 11 | 27268546 |
| 12 | 23553169 |
| 13 | 244068841 |
| 14 | 913535283 |
| 15 | 3195380866 |
| 16 | 2088087121 |
| 17 | 5988790769809 |
| 18 | 2601212829601 |