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 | 7 |
| 2 | 97 |
| 3 | 31 |
| 4 | 708158977 |
| 5 | 127 |
| 6 | 22783 |
| 7 | 113210499946729046527 |
| 8 | 12289 |
| 9 | 1049179854847 |
| 10 | 22427452848394140276947044397991663611794141183 |
| 11 | 8191 |
| 12 | 29687809 |