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 | 5 |
| 3 | 23 |
| 4 | 89 |
| 5 | 173 |
| 6 | 233 |
| 7 | 239 |
| 8 | 1223 |
| 9 | 1409 |
| 10 | 1559 |
| 11 | 2549 |
| 12 | 2693 |
| 13 | 3389 |
| 14 | 3803 |
| 15 | 4373 |
| 16 | 4919 |
| 17 | 9059 |
| 18 | 10313 |
| 19 | 16493 |
| 20 | 17159 |
| 21 | 20879 |
| 22 | 20939 |
| 23 | 22013 |
| 24 | 24473 |
| 25 | 25229 |
| 26 | 31649 |
| 27 | 32933 |
| 28 | 34253 |
| 29 | 34883 |
| 30 | 37049 |
| 31 | 38453 |
| 32 | 39089 |
| 33 | 40283 |
| 34 | 41399 |
| 35 | 43793 |
| 36 | 44543 |
| 37 | 49103 |
| 38 | 49919 |
| 39 | 50993 |
| 40 | 54293 |
| 41 | 55673 |