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 | 11 |
| 4 | 29 |
| 5 | 53 |
| 6 | 103 |
| 7 | 191 |
| 8 | 311 |
| 9 | 709 |
| 10 | 1091 |
| 11 | 1193 |
| 12 | 1571 |
| 13 | 2339 |
| 14 | 3547 |
| 15 | 5449 |
| 16 | 8243 |
| 17 | 9337 |
| 18 | 13711 |
| 19 | 16673 |
| 20 | 18899 |
| 21 | 25367 |
| 22 | 37217 |
| 23 | 62207 |
| 24 | 74441 |
| 25 | 87869 |
| 26 | 94439 |
| 27 | 94789 |
| 28 | 96353 |
| 29 | 114013 |
| 30 | 229981 |
| 31 | 397253 |
| 32 | 424769 |
| 33 | 432781 |
| 34 | 496747 |
| 35 | 542599 |
| 36 | 583397 |
| 37 | 673451 |
| 38 | 733009 |
| 39 | 869563 |
| 40 | 874151 |