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 | 257 |
| 2 | 65537 |
| 3 | 641 |
| 4 | 257 |
| 5 | 193 |
| 6 | 257 |
| 7 | 274177 |
| 8 | 65537 |
| 9 | 257 |
| 10 | 641 |
| 11 | 257 |
| 12 | 449 |
| 13 | 59649589127497217 |
| 14 | 257 |
| 15 | 257 |
| 16 | 641 |
| 17 | 65537 |
| 18 | 257 |
| 19 | 769 |
| 20 | 257 |
| 21 | 65537 |
| 22 | 641 |
| 23 | 257 |
| 24 | 193 |
| 25 | 257 |
| 26 | 1238926361552897 |
| 27 | 5441 |
| 28 | 257 |
| 29 | 257 |
| 30 | 65537 |
| 31 | 274177 |
| 32 | 257 |
| 33 | 193 |
| 34 | 257 |
| 35 | 641 |
| 36 | 65537 |
| 37 | 257 |
| 38 | 59649589127497217 |
| 39 | 257 |
| 40 | 65537 |
| 41 | 641 |
| 42 | 257 |
| 43 | 257 |
| 44 | 274177 |
| 45 | 65537 |
| 46 | 257 |
| 47 | 641 |
| 48 | 257 |
| 49 | 5953 |