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 | 9 |
| 2 | 256 |
| 3 | 1765 |
| 4 | 17450 |
| 5 | 256713 |
| 6 | 2640993 |
| 7 | 29067775 |
| 8 | 356242817 |
| 9 | 4007327435 |
| 10 | 45579824373 |
| 11 | 533089787086 |
| 12 | 6110543663491 |
| 13 | 70142323962609 |
| 14 | 810920084478849 |
| 15 | 9331277910756214 |
| 16 | 107381182592973180 |
| 17 | 1237942191372084761 |