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 | 24 |
| 2 | 324 |
| 3 | 3248 |
| 4 | 26802 |
| 5 | 191904 |
| 6 | 1230824 |
| 7 | 7221744 |
| 8 | 39342783 |
| 9 | 201199888 |
| 10 | 974039652 |
| 11 | 4493483424 |
| 12 | 19859122142 |
| 13 | 84451085664 |
| 14 | 346817307672 |
| 15 | 1379695128080 |
| 16 | 5330825817507 |
| 17 | 20050294307376 |
| 18 | 73556403409336 |