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) |
|---|---|
| 0 | 2 |
| 1 | 11 |
| 2 | 85 |
| 3 | 737 |
| 4 | 6577 |
| 5 | 59081 |
| 6 | 531505 |
| 7 | 4783097 |
| 8 | 43046977 |
| 9 | 387421001 |
| 10 | 3486785425 |
| 11 | 31381061657 |
| 12 | 282429540577 |
| 13 | 2541865836521 |
| 14 | 22876792471345 |
| 15 | 205891132127417 |
| 16 | 1853020188917377 |
| 17 | 16677181699797641 |
| 18 | 150094635297261265 |