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 | 0 |
| 2 | 2 |
| 3 | 846 |
| 4 | 120213 |
| 5 | 10274578 |
| 6 | 664545445 |
| 7 | 35754455353 |
| 8 | 1670170058120 |
| 9 | 69308975221311 |
| 10 | 2593006992632304 |
| 11 | 88403496753787431 |
| 12 | 2769975679152779611 |
| 13 | 80328533028556177478 |
| 14 | 2168854415620301487498 |
| 15 | 54799484013892849788339 |
| 16 | 1301484769626282937741600 |