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 | 220 |
| 2 | 280540 |
| 3 | 1669910 |
| 4 | 56512610 |
| 5 | 133089500 |
| 6 | 8376676490 |
| 7 | 24631297425 |
| 8 | 688539661425 |
| 9 | 724641414350 |
| 10 | 92371445691525 |
| 11 | 3599848247084570 |
| 12 | 7526776592305828 |
| 13 | 14223210473604152536 |
| 14 | 35367855263480783043 |