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 | 180 |
| 2 | 12000 |
| 3 | 30996 |
| 4 | 47940 |
| 5 | 66780 |
| 6 | 102816 |
| 7 | 128040 |
| 8 | 234300 |
| 9 | 494088 |
| 10 | 712272 |
| 11 | 1133088 |
| 12 | 1408212 |
| 13 | 1623072 |
| 14 | 1692768 |
| 15 | 1896336 |
| 16 | 1925196 |
| 17 | 2024760 |
| 18 | 2388720 |
| 19 | 2529090 |
| 20 | 2836008 |
| 21 | 3423120 |
| 22 | 3724320 |
| 23 | 3822360 |
| 24 | 4628760 |
| 25 | 4750920 |
| 26 | 7219608 |
| 27 | 7359912 |
| 28 | 7603488 |
| 29 | 7749060 |