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 | 7 |
| 3 | 13 |
| 4 | 31 |
| 5 | 43 |
| 6 | 73 |
| 7 | 157 |
| 8 | 211 |
| 9 | 241 |
| 10 | 307 |
| 11 | 421 |
| 12 | 463 |
| 13 | 601 |
| 14 | 757 |
| 15 | 1123 |
| 16 | 1483 |
| 17 | 1723 |
| 18 | 2551 |
| 19 | 2971 |
| 20 | 3307 |
| 21 | 3541 |
| 22 | 3907 |
| 23 | 4423 |
| 24 | 4831 |
| 25 | 5113 |
| 26 | 5701 |
| 27 | 6007 |
| 28 | 6163 |
| 29 | 6481 |
| 30 | 8011 |
| 31 | 8191 |
| 32 | 9901 |
| 33 | 10303 |
| 34 | 11131 |
| 35 | 12211 |
| 36 | 12433 |
| 37 | 13807 |
| 38 | 14281 |
| 39 | 17293 |
| 40 | 19183 |
| 41 | 20023 |
| 42 | 20593 |
| 43 | 21757 |
| 44 | 22651 |
| 45 | 23563 |