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 | 7 |
| 2 | 126 |
| 3 | 1534 |
| 4 | 19026 |
| 5 | 240439 |
| 6 | 3019079 |
| 7 | 37927609 |
| 8 | 476686533 |
| 9 | 5990217198 |
| 10 | 75274793595 |
| 11 | 945936754846 |
| 12 | 11887043481205 |
| 13 | 149377582878265 |
| 14 | 1877141810399248 |
| 15 | 23588956324272434 |
| 16 | 296428780394920491 |