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 | 2 |
| 2 | 3 |
| 3 | 35 |
| 4 | 119 |
| 5 | 2519 |
| 6 | 277199 |
| 7 | 5045039 |
| 8 | 183783599 |
| 9 | 4655851199 |
| 10 | 80313433199 |
| 11 | 32607253879199 |
| 12 | 2743667504978399 |
| 13 | 58772246027695199 |
| 14 | 5038384364010597599 |