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 | 4096 |
| 1 | 1000000 |
| 2 | 16777216 |
| 3 | 113379904 |
| 4 | 481890304 |
| 5 | 1544804416 |
| 6 | 4096000000 |
| 7 | 9474296896 |
| 8 | 19770609664 |
| 9 | 38068692544 |
| 10 | 68719476736 |
| 11 | 117649000000 |
| 12 | 192699928576 |
| 13 | 304006671424 |
| 14 | 464404086784 |
| 15 | 689869781056 |
| 16 | 1000000000000 |
| 17 | 1418519112256 |
| 18 | 1973822685184 |
| 19 | 2699554153024 |
| 20 | 3635215077376 |