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 | 24950 |
| 2 | 9318805 |
| 3 | 641631566 |
| 4 | 17609835599 |
| 5 | 269462676001 |
| 6 | 2747459653062 |
| 7 | 20767436139206 |
| 8 | 124705556762920 |
| 9 | 623826151413581 |
| 10 | 2689745345189961 |
| 11 | 10252109460663720 |
| 12 | 35217218076189536 |
| 13 | 110684300106966444 |