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 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 107 |
| 5 | 1178 |
| 6 | 14805 |
| 7 | 203885 |
| 8 | 3002973 |
| 9 | 46573347 |
| 10 | 752521980 |
| 11 | 12571607865 |
| 12 | 215925120675 |
| 13 | 3796546970232 |
| 14 | 68106673339365 |
| 15 | 1243210765414512 |
| 16 | 23041656826384341 |