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 | 5 |
| 3 | 17 |
| 4 | 73 |
| 5 | 257 |
| 6 | 521 |
| 7 | 577 |
| 8 | 1033 |
| 9 | 1153 |
| 10 | 2081 |
| 11 | 2113 |
| 12 | 4129 |
| 13 | 16417 |
| 14 | 18433 |
| 15 | 32801 |
| 16 | 32833 |
| 17 | 65537 |
| 18 | 74017 |
| 19 | 133121 |
| 20 | 147457 |
| 21 | 262153 |
| 22 | 262433 |
| 23 | 262657 |
| 24 | 270337 |
| 25 | 270601 |
| 26 | 271393 |
| 27 | 295937 |
| 28 | 524353 |
| 29 | 524801 |
| 30 | 525313 |
| 31 | 532489 |
| 32 | 1048609 |
| 33 | 1049089 |
| 34 | 1056833 |
| 35 | 1065089 |
| 36 | 1082369 |
| 37 | 1179649 |
| 38 | 1183753 |
| 39 | 2101249 |
| 40 | 2367553 |
| 41 | 4194433 |