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 | 3 |
| 2 | 5 |
| 3 | 9 |
| 4 | 17 |
| 5 | 65 |
| 6 | 1025 |
| 7 | 65537 |
| 8 | 16777217 |
| 9 | 67108865 |
| 10 | 34359738369 |
| 11 | 4503599627370497 |
| 12 | 36028797018963969 |
| 13 | 39614081257132168796771975169 |
| 14 | 22300745198530623141535718272648361505980417 |