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 | 192 |
| 2 | 191952 |
| 3 | 16821504 |
| 4 | 397751376 |
| 5 | 4630308480 |
| 6 | 34416494784 |
| 7 | 187486720512 |
| 8 | 814895994960 |
| 9 | 2975529668544 |
| 10 | 9486529043040 |
| 11 | 27053048565504 |
| 12 | 70486165778112 |
| 13 | 169930984401024 |
| 14 | 384163663508352 |