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 | 9 |
| 2 | 41 |
| 3 | 327 |
| 4 | 3158 |
| 5 | 31450 |
| 6 | 314349 |
| 7 | 3143320 |
| 8 | 31433005 |
| 9 | 314329833 |
| 10 | 3143298089 |
| 11 | 31432980631 |
| 12 | 314329806030 |
| 13 | 3143298060001 |
| 14 | 31432980599686 |
| 15 | 314329805996514 |
| 16 | 3143298059964770 |
| 17 | 31432980599647312 |
| 18 | 314329805996472711 |
| 19 | 3143298059964726682 |
| 20 | 31432980599647266367 |