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 | 2667 |
| 3 | 3937 |
| 4 | 57337 |
| 5 | 172011 |
| 6 | 253921 |
| 7 | 677207307 |
| 8 | 1073602561 |
| 9 | 732959441001382539 |
| 10 | 750688035198863979 |
| 11 | 1000923107604038521 |
| 12 | 1108158528150703969 |