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 | 7 |
| 3 | 37 |
| 4 | 266 |
| 5 | 2963 |
| 6 | 38785 |
| 7 | 662308 |
| 8 | 12622637 |
| 9 | 290982959 |
| 10 | 8451128448 |
| 11 | 262275964847 |
| 12 | 9712661827787 |
| 13 | 398481410904114 |
| 14 | 17144413330704689 |
| 15 | 806185907954024497 |
| 16 | 42744997534894003030 |
| 17 | 2522761040466700203267 |