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 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 37 |
| 5 | 75 |
| 6 | 668 |
| 7 | 1075 |
| 8 | 37732 |
| 9 | 742767 |
| 10 | 1811865 |
| 11 | 3140083 |
| 12 | 8937770 |
| 13 | 108268896 |
| 14 | 282951249 |
| 15 | 633932500 |
| 16 | 1275584757 |
| 17 | 60455590365 |