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 | 50 |
| 2 | 3060 |
| 3 | 141112 |
| 4 | 5286827 |
| 5 | 169786856 |
| 6 | 4837645361 |
| 7 | 125243425246 |
| 8 | 2997702534361 |
| 9 | 67199044773027 |
| 10 | 1425028874634334 |
| 11 | 28814020738905085 |
| 12 | 559067607301700698 |
| 13 | 10463117115709609406 |
| 14 | 189698093216997989976 |
| 15 | 3343758094368043618098 |