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 | 128 |
| 2 | 16384 |
| 3 | 537496 |
| 4 | 6458585 |
| 5 | 43632367 |
| 6 | 210660192 |
| 7 | 821284360 |
| 8 | 2758051780 |
| 9 | 8275194605 |
| 10 | 22704480123 |
| 11 | 57880672236 |
| 12 | 138698869116 |
| 13 | 315159317570 |
| 14 | 683706718357 |
| 15 | 1423847390903 |
| 16 | 2859216983489 |
| 17 | 5556849891974 |
| 18 | 10484853235610 |