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 | 7 |
| 2 | 13 |
| 3 | 31 |
| 4 | 57 |
| 5 | 133 |
| 6 | 183 |
| 7 | 307 |
| 8 | 381 |
| 9 | 553 |
| 10 | 871 |
| 11 | 993 |
| 12 | 1407 |
| 13 | 1723 |
| 14 | 1893 |
| 15 | 2257 |
| 16 | 2863 |
| 17 | 3541 |
| 18 | 3783 |
| 19 | 4557 |
| 20 | 5113 |
| 21 | 5403 |
| 22 | 6321 |
| 23 | 6973 |
| 24 | 8011 |
| 25 | 9507 |
| 26 | 10303 |
| 27 | 10713 |
| 28 | 11557 |
| 29 | 11991 |
| 30 | 12883 |
| 31 | 16257 |
| 32 | 17293 |
| 33 | 18907 |
| 34 | 19461 |
| 35 | 22351 |
| 36 | 22953 |
| 37 | 24807 |
| 38 | 26733 |
| 39 | 28057 |
| 40 | 30103 |
| 41 | 32221 |