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 | 11 |
| 2 | 13 |
| 3 | 17 |
| 4 | 19 |
| 5 | 23 |
| 6 | 37 |
| 7 | 61 |
| 8 | 233 |
| 9 | 257 |
| 10 | 1553 |
| 11 | 2879 |
| 12 | 4919 |
| 13 | 6389 |
| 14 | 7621 |
| 15 | 8081 |
| 16 | 35593 |
| 17 | 37951 |
| 18 | 96263 |
| 19 | 206419 |
| 20 | 596803 |
| 21 | 1202837 |
| 22 | 2837851 |