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 | 1 |
| 2 | 4 |
| 3 | 20 |
| 4 | 39 |
| 5 | 94 |
| 6 | 636 |
| 7 | 699 |
| 8 | 716 |
| 9 | 904 |
| 10 | 1374 |
| 11 | 1824 |
| 12 | 2457 |
| 13 | 24007 |
| 14 | 32164 |
| 15 | 170306 |
| 16 | 179545 |
| 17 | 198107 |
| 18 | 463343 |
| 19 | 579913 |
| 20 | 910774 |
| 21 | 3758763 |
| 22 | 3896343 |
| 23 | 5800335 |
| 24 | 11314629 |
| 25 | 13245450 |
| 26 | 14422622 |
| 27 | 62449915 |