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 | 12 |
| 3 | 24 |
| 4 | 35 |
| 5 | 468 |
| 6 | 900 |
| 7 | 1333 |
| 8 | 17760 |
| 9 | 34188 |
| 10 | 50615 |
| 11 | 674424 |
| 12 | 1298232 |
| 13 | 1922041 |
| 14 | 25610340 |
| 15 | 49298640 |
| 16 | 72986939 |
| 17 | 972518508 |
| 18 | 1872050076 |
| 19 | 2771581645 |
| 20 | 36930092952 |
| 21 | 71088604260 |
| 22 | 105247115567 |
| 23 | 1402371013680 |
| 24 | 2699494911792 |
| 25 | 3996618809905 |