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 | 13 |
| 2 | 194 |
| 3 | 3556 |
| 4 | 62368 |
| 5 | 1096624 |
| 6 | 19236832 |
| 7 | 337258048 |
| 8 | 5910459096 |
| 9 | 103561279328 |
| 10 | 1814380139952 |
| 11 | 31785935283840 |
| 12 | 556837728488064 |
| 13 | 9754730426036000 |
| 14 | 170882696555044928 |
| 15 | 2993497165464775680 |
| 16 | 52439495408779417216 |