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 | 2 |
| 2 | 2049 |
| 3 | 4096 |
| 4 | 177148 |
| 5 | 179195 |
| 6 | 354294 |
| 7 | 4194305 |
| 8 | 4196352 |
| 9 | 4371451 |
| 10 | 8388608 |
| 11 | 48828126 |
| 12 | 48830173 |
| 13 | 49005272 |
| 14 | 53022429 |
| 15 | 97656250 |
| 16 | 362797057 |
| 17 | 362799104 |
| 18 | 362974203 |
| 19 | 366991360 |
| 20 | 411625181 |
| 21 | 725594112 |
| 22 | 1977326744 |
| 23 | 1977328791 |
| 24 | 1977503890 |
| 25 | 1981521047 |
| 26 | 2026154868 |
| 27 | 2340123799 |
| 28 | 3954653486 |