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 | 4 |
| 2 | 8 |
| 3 | 32 |
| 4 | 128 |
| 5 | 8192 |
| 6 | 131072 |
| 7 | 524288 |
| 8 | 2147483648 |
| 9 | 2305843009213693952 |
| 10 | 618970019642690137449562112 |