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 | 9 |
| 1 | 10 |
| 2 | 29 |
| 3 | 39 |
| 4 | 731 |
| 5 | 770 |
| 6 | 2271 |
| 7 | 3041 |
| 8 | 57009 |
| 9 | 60050 |
| 10 | 177109 |
| 11 | 237159 |
| 12 | 4445971 |
| 13 | 4683130 |
| 14 | 13812231 |
| 15 | 18495361 |
| 16 | 346728729 |
| 17 | 365224090 |
| 18 | 1077176909 |
| 19 | 1442400999 |
| 20 | 27040394891 |
| 21 | 28482795890 |
| 22 | 84005986671 |