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) |
|---|---|
| 0 | 1 |
| 1 | 26 |
| 2 | 676 |
| 3 | 17576 |
| 4 | 456976 |
| 5 | 11881376 |
| 6 | 308915776 |
| 7 | 8031810176 |
| 8 | 208827064576 |
| 9 | 5429503678976 |
| 10 | 141167095653376 |
| 11 | 3670344486987776 |
| 12 | 95428956661682176 |
| 13 | 2481152873203736576 |
| 14 | 64509974703297150976 |
| 15 | 1677259342285725925376 |
| 16 | 43608742899428874059776 |
| 17 | 1133827315385150725554176 |
| 18 | 29479510200013918864408576 |
| 19 | 766467265200361890474622976 |
| 20 | 19928148895209409152340197376 |