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 | 17 |
| 2 | 547 |
| 3 | 14811 |
| 4 | 401253 |
| 5 | 10982565 |
| 6 | 300126903 |
| 7 | 8199377227 |
| 8 | 224032447213 |
| 9 | 6121258910011 |
| 10 | 167250519310183 |
| 11 | 4569773233045519 |
| 12 | 124859601874166153 |
| 13 | 3411530022687206815 |
| 14 | 93212992000176142919 |
| 15 | 2546851962811003392065 |