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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 32 |
| 4 | 467 |
| 5 | 15726 |
| 6 | 1283648 |
| 7 | 266995482 |
| 8 | 145658273814 |
| 9 | 212067643326874 |
| 10 | 834200554714504905 |
| 11 | 8952922576975709358534 |
| 12 | 264287923205519914989471726 |
| 13 | 21606715274151098406493353524694 |
| 14 | 4921011141817073607674347572008576367 |