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 | 3 |
| 3 | 6 |
| 4 | 10 |
| 5 | 15 |
| 6 | 21 |
| 7 | 28 |
| 8 | 36 |
| 9 | 45 |
| 10 | 78 |
| 11 | 3741 |
| 12 | 4005 |
| 13 | 4278 |
| 14 | 14028 |
| 15 | 224115 |
| 16 | 238395 |
| 17 | 258121 |
| 18 | 994755 |
| 19 | 1104841 |
| 20 | 2440945 |
| 21 | 4601061 |
| 22 | 19185915 |
| 23 | 26451901 |
| 24 | 27073761 |
| 25 | 38250631 |
| 26 | 611712753 |
| 27 | 1787631321 |
| 28 | 3620877351 |
| 29 | 4427640253 |
| 30 | 16786524835 |
| 31 | 60302220121 |
| 32 | 65003739895 |
| 33 | 226236074130 |
| 34 | 367188935361 |
| 35 | 6710200324191 |