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 | 9 |
| 1 | 2 |
| 2 | 3 |
| 3 | 65 |
| 4 | 7151 |
| 5 | 80022924 |
| 6 | 30599691861141025 |
| 7 | 941764378394111110366748005603120790 |
| 8 | 1207204053149486733914427645845997404101266838687995330054616662472844167 |