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 | 35 |
| 2 | 1225 |
| 3 | 20265 |
| 4 | 383845 |
| 5 | 7070805 |
| 6 | 131365535 |
| 7 | 2433018665 |
| 8 | 45118588165 |
| 9 | 836245602255 |
| 10 | 15502908395345 |
| 11 | 287374205431845 |
| 12 | 5327241881287515 |
| 13 | 98752480429363705 |
| 14 | 1830617909878465155 |
| 15 | 33934818950365745265 |