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 | 0 |
| 2 | 34 |
| 3 | 475 |
| 4 | 4640 |
| 5 | 56541 |
| 6 | 688999 |
| 7 | 8334338 |
| 8 | 100913905 |
| 9 | 1222239033 |
| 10 | 14803542454 |
| 11 | 179291982859 |
| 12 | 2171499466232 |
| 13 | 26300156362525 |
| 14 | 318534929264743 |
| 15 | 3857942140993326 |
| 16 | 46725546245979040 |
| 17 | 565917413571325189 |