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 | 11 |
| 3 | 107 |
| 4 | 239 |
| 5 | 311 |
| 6 | 569 |
| 7 | 1019 |
| 8 | 1031 |
| 9 | 1229 |
| 10 | 1427 |
| 11 | 1997 |
| 12 | 2081 |
| 13 | 2087 |
| 14 | 2111 |
| 15 | 2687 |
| 16 | 3251 |
| 17 | 4049 |
| 18 | 4127 |
| 19 | 4157 |
| 20 | 4229 |
| 21 | 4241 |
| 22 | 4481 |
| 23 | 5231 |
| 24 | 5639 |
| 25 | 6089 |
| 26 | 7307 |
| 27 | 7559 |
| 28 | 8969 |
| 29 | 9629 |
| 30 | 10007 |
| 31 | 10457 |
| 32 | 13691 |
| 33 | 13829 |
| 34 | 13901 |
| 35 | 14249 |
| 36 | 14549 |
| 37 | 14561 |
| 38 | 16187 |
| 39 | 16649 |
| 40 | 17207 |