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 | 4 |
| 2 | 256 |
| 3 | 61733 |
| 4 | 26631193 |
| 5 | 15947472102 |
| 6 | 12025063773557 |
| 7 | 10962346407561257 |
| 8 | 11777774040586957640 |