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 | 9 |
| 2 | 15 |
| 3 | 33 |
| 4 | 57 |
| 5 | 93 |
| 6 | 177 |
| 7 | 237 |
| 8 | 267 |
| 9 | 393 |
| 10 | 453 |
| 11 | 573 |
| 12 | 597 |
| 13 | 687 |
| 14 | 723 |
| 15 | 933 |
| 16 | 1167 |
| 17 | 1227 |
| 18 | 1293 |
| 19 | 1527 |
| 20 | 1563 |
| 21 | 1623 |
| 22 | 1983 |
| 23 | 2157 |
| 24 | 2217 |
| 25 | 2463 |
| 26 | 2913 |
| 27 | 3327 |
| 28 | 3453 |
| 29 | 3543 |
| 30 | 4353 |
| 31 | 4647 |
| 32 | 5007 |
| 33 | 5277 |
| 34 | 5403 |
| 35 | 5847 |
| 36 | 5853 |
| 37 | 6033 |
| 38 | 6117 |
| 39 | 6207 |
| 40 | 6267 |
| 41 | 6333 |
| 42 | 6393 |
| 43 | 7023 |
| 44 | 7233 |
| 45 | 8013 |
| 46 | 8097 |