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 | 1 |
| 1 | 1 |
| 2 | 10 |
| 3 | 331 |
| 4 | 33476 |
| 5 | 10204145 |
| 6 | 9378590446 |
| 7 | 26026690264407 |
| 8 | 218132378185337416 |
| 9 | 5518274388618175447069 |
| 10 | 421034872020570533423509010 |
| 11 | 96809747319527667989371938562883 |