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 | 917 |
| 3 | 2729 |
| 4 | 39109 |
| 5 | 277101 |
| 6 | 2485637 |
| 7 | 18231947 |
| 8 | 135424961 |
| 9 | 963247737 |
| 10 | 6838373877 |
| 11 | 48103629141 |
| 12 | 337900112109 |
| 13 | 2368821073603 |
| 14 | 16597473994629 |
| 15 | 116236940081089 |