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 | 3 |
| 2 | 41 |
| 3 | 2083 |
| 4 | 26041 |
| 5 | 1692709 |
| 6 | 677083367 |
| 7 | 627278646679 |
| 8 | 187343343120121 |
| 9 | 159655659994018667 |
| 10 | 2255131136576400770887 |
| 11 | 1104116174856823349350321 |
| 12 | 18691706438024838972135587027 |
| 13 | 241078822520146767324214702284691 |
| 14 | 396825475231058771412223714725086039 |