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 | 1 |
| 1 | 3 |
| 2 | 3 |
| 3 | 9 |
| 4 | 27 |
| 5 | 243 |
| 6 | 6561 |
| 7 | 1594323 |
| 8 | 10460353203 |
| 9 | 16677181699666569 |
| 10 | 174449211009120179071170507 |
| 11 | 2909321189362570808630465826492242446680483 |
| 12 | 507528786056415600719754159741696356908742250191663887263627442114881 |