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 | 2 |
| 2 | 4 |
| 3 | 9 |
| 4 | 24 |
| 5 | 30 |
| 6 | 34 |
| 7 | 99 |
| 8 | 189 |
| 9 | 217 |
| 10 | 282 |
| 11 | 367 |
| 12 | 738 |
| 13 | 3302 |
| 14 | 3427 |
| 15 | 3644 |
| 16 | 3793 |
| 17 | 4612 |
| 18 | 7970 |
| 19 | 8688 |
| 20 | 14357 |
| 21 | 23283 |
| 22 | 34202 |
| 23 | 49414 |
| 24 | 85633 |
| 25 | 85787 |
| 26 | 103520 |
| 27 | 224659 |
| 28 | 273413 |
| 29 | 415069 |
| 30 | 474029 |
| 31 | 685903 |
| 32 | 2386432 |
| 33 | 2398788 |
| 34 | 2959782 |
| 35 | 4875380 |
| 36 | 6169832 |
| 37 | 9330121 |
| 38 | 12768473 |
| 39 | 13879771 |
| 40 | 17681799 |