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 | 25 |
| 3 | 27 |
| 4 | 256 |
| 5 | 243 |
| 6 | 262144 |
| 7 | 2187 |
| 8 | 256 |
| 9 | 262144 |
| 10 | 282475249 |
| 11 | 2048 |
| 12 | 244140625 |
| 13 | 2541865828329 |
| 14 | 268435456 |
| 15 | 205891132094649 |
| 16 | 2821109907456 |
| 17 | 232630513987207 |
| 18 | 262144 |
| 19 | 274877906944 |
| 20 | 278218429446951548637196401 |
| 21 | 2097152 |
| 22 | 2384185791015625 |
| 23 | 27368747340080916343 |