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) |
|---|---|
| 2 | 23 |
| 3 | 71 |
| 4 | 224 |
| 5 | 708 |
| 6 | 2237 |
| 7 | 7072 |
| 8 | 22361 |
| 9 | 70711 |
| 10 | 223607 |
| 11 | 707107 |
| 12 | 2236068 |
| 13 | 7071068 |
| 14 | 22360680 |
| 15 | 70710679 |
| 16 | 223606798 |
| 17 | 707106782 |
| 18 | 2236067978 |
| 19 | 7071067812 |
| 20 | 22360679775 |
| 21 | 70710678119 |
| 22 | 223606797750 |
| 23 | 707106781187 |
| 24 | 2236067977500 |