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 | 9 |
| 3 | 373 |
| 4 | 48913 |
| 5 | 13717421 |
| 6 | 6698798233 |
| 7 | 5057809205989 |
| 8 | 5465701947765793 |
| 9 | 8008631808527689309 |
| 10 | 15287592943577781017641 |
| 11 | 36867279706750843040346261 |
| 12 | 109619115381793714510485861169 |
| 13 | 393991653133258067890987154457613 |
| 14 | 1683967033137904529927995135566966713 |