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 | 5 |
| 2 | 7 |
| 3 | 13 |
| 4 | 19 |
| 5 | 73 |
| 6 | 109 |
| 7 | 193 |
| 8 | 433 |
| 9 | 1153 |
| 10 | 2593 |
| 11 | 139969 |
| 12 | 472393 |
| 13 | 786433 |
| 14 | 995329 |
| 15 | 57395629 |
| 16 | 63700993 |
| 17 | 169869313 |
| 18 | 4076863489 |
| 19 | 10871635969 |
| 20 | 2348273369089 |
| 21 | 56358560858113 |
| 22 | 79164837199873 |
| 23 | 84537841287169 |
| 24 | 150289495621633 |