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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 36 |
| 7 | 72 |
| 8 | 125 |
| 9 | 136 |
| 10 | 900 |
| 11 | 4454 |
| 12 | 8021 |
| 13 | 27223 |
| 14 | 33905 |
| 15 | 73222 |
| 16 | 127536 |
| 17 | 146353 |
| 18 | 180177 |
| 19 | 234668 |
| 20 | 273241 |