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 | 32767 |
| 1 | 8355967 |
| 2 | 126322567 |
| 3 | 429496729 |
| 4 | 715827882 |
| 5 | 1261745355 |
| 6 | 32212752798 |
| 7 | 109523344903 |
| 8 | 182561385259 |
| 9 | 322149788877 |
| 10 | 1655752033019 |
| 11 | 2785432610621 |
| 12 | 13200625665306 |
| 13 | 22026883141028 |
| 14 | 105563899667886 |
| 15 | 180876131965012 |