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 | 1 |
| 2 | 46 |
| 3 | 2116 |
| 4 | 65182 |
| 5 | 2007889 |
| 6 | 50099452 |
| 7 | 1250046736 |
| 8 | 33040712340 |
| 9 | 873318285225 |
| 10 | 23316358581360 |
| 11 | 622513677650176 |
| 12 | 16358436196050416 |
| 13 | 429867558557693881 |