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 | 1 |
| 2 | 31 |
| 3 | 18631 |
| 4 | 55831 |
| 5 | 92329 |
| 6 | 3014633 |
| 7 | 3556559 |
| 8 | 6429121 |
| 9 | 9664591 |
| 10 | 12158831 |
| 11 | 33554431 |
| 12 | 34844431 |
| 13 | 566740481 |
| 14 | 644903881 |
| 15 | 727815241 |
| 16 | 842608801 |
| 17 | 2207017049 |
| 18 | 2208171881 |
| 19 | 2445644207 |
| 20 | 8694918511 |
| 21 | 9031128791 |
| 22 | 18738146881 |
| 23 | 27345981361 |
| 24 | 35476604081 |