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 | 195 |
| 2 | 37829 |
| 3 | 7338631 |
| 4 | 1423656585 |
| 5 | 276182038859 |
| 6 | 53577891882061 |
| 7 | 10393834843080975 |
| 8 | 2016350381665827089 |
| 9 | 391161580208327374291 |
| 10 | 75883330210033844785365 |
| 11 | 14720974899166357560986519 |
| 12 | 2855793247108063332986599321 |
| 13 | 554009168964065120241839281755 |