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 | 520017 |
| 2 | 10084236 |
| 3 | 143369699 |
| 4 | 1662436696 |
| 5 | 16382439469 |
| 6 | 140871930232 |
| 7 | 1078197169699 |
| 8 | 7459396065112 |
| 9 | 47221234070168 |
| 10 | 276218909139304 |
| 11 | 1504985434117375 |
| 12 | 7689047974774610 |
| 13 | 37044742671636217 |
| 14 | 169120726715615719 |