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 | 5 |
| 3 | 7 |
| 4 | 13 |
| 5 | 17 |
| 6 | 29 |
| 7 | 61 |
| 8 | 109 |
| 9 | 137 |
| 10 | 149 |
| 11 | 191 |
| 12 | 223 |
| 13 | 227 |
| 14 | 269 |
| 15 | 311 |
| 16 | 331 |
| 17 | 337 |
| 18 | 359 |
| 19 | 389 |
| 20 | 397 |
| 21 | 409 |
| 22 | 433 |
| 23 | 457 |
| 24 | 467 |
| 25 | 491 |
| 26 | 587 |
| 27 | 619 |
| 28 | 653 |
| 29 | 661 |
| 30 | 709 |
| 31 | 727 |