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 | 3 |
| 3 | 11 |
| 4 | 23 |
| 5 | 47 |
| 6 | 1301 |
| 7 | 7741 |
| 8 | 83453838443384019701 |
| 9 | 3497830604170469202903845457503189 |
| 10 | 3043448204076362393100321053325760617159315927820231750001 |