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 | 12 |
| 2 | 56 |
| 3 | 672 |
| 4 | 992 |
| 5 | 11904 |
| 6 | 16256 |
| 7 | 55552 |
| 8 | 195072 |
| 9 | 666624 |
| 10 | 910336 |
| 11 | 10924032 |
| 12 | 16125952 |
| 13 | 67100672 |
| 14 | 193511424 |
| 15 | 805208064 |
| 16 | 903053312 |
| 17 | 3757637632 |
| 18 | 10836639744 |
| 19 | 17179738112 |
| 20 | 45091651584 |
| 21 | 66563866624 |
| 22 | 206156857344 |
| 23 | 274877382656 |
| 24 | 798766399488 |
| 25 | 962065334272 |
| 26 | 1090788524032 |