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 | 4 |
| 2 | 8 |
| 3 | 16 |
| 4 | 1228 |
| 5 | 4912 |
| 6 | 5662 |
| 7 | 11476 |
| 8 | 76798 |
| 9 | 168904 |
| 10 | 387676 |
| 11 | 938792 |
| 12 | 1003276 |
| 13 | 1147576 |
| 14 | 1415044 |
| 15 | 1419856 |
| 16 | 1832836 |
| 17 | 2297296 |
| 18 | 3976624 |
| 19 | 5470126 |
| 20 | 6376126 |
| 21 | 7309576 |
| 22 | 9649624 |
| 23 | 12423676 |
| 24 | 13193776 |
| 25 | 14026888 |
| 26 | 14652496 |
| 27 | 19136272 |
| 28 | 20570936 |
| 29 | 24604696 |