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 | 194 |
| 2 | 354615 |
| 3 | 171459557 |
| 4 | 92915045150 |
| 5 | 49526167251643 |
| 6 | 26548571098836075 |
| 7 | 14217486118795912134 |