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 | 1000000000 |
| 1 | 794280046581 |
| 2 | 35184372088832 |
| 3 | 502592611936843 |
| 4 | 3904305912313344 |
| 5 | 20711912837890625 |
| 6 | 84590643846578176 |
| 7 | 285544154243029527 |
| 8 | 833747762130149888 |
| 9 | 2171893279442309389 |
| 10 | 5159780352000000000 |