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 | 2 |
| 2 | 13 |
| 3 | 97 |
| 4 | 193 |
| 5 | 241 |
| 6 | 673 |
| 7 | 769 |
| 8 | 2689 |
| 9 | 5953 |
| 10 | 8929 |
| 11 | 12289 |
| 12 | 40961 |
| 13 | 49921 |
| 14 | 61681 |
| 15 | 101377 |
| 16 | 286721 |
| 17 | 414721 |
| 18 | 417793 |
| 19 | 550801 |
| 20 | 786433 |
| 21 | 1130641 |
| 22 | 1376257 |
| 23 | 1489153 |
| 24 | 1810433 |
| 25 | 3602561 |
| 26 | 6942721 |
| 27 | 7340033 |
| 28 | 11304961 |
| 29 | 12380161 |
| 30 | 15790321 |
| 31 | 17047297 |
| 32 | 22253377 |
| 33 | 39714817 |
| 34 | 67411969 |
| 35 | 89210881 |
| 36 | 93585409 |
| 37 | 113246209 |
| 38 | 119782433 |
| 39 | 152371201 |
| 40 | 171048961 |
| 41 | 185602561 |
| 42 | 377487361 |
| 43 | 394783681 |