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 | 29 |
| 4 | 41 |
| 5 | 89 |
| 6 | 101 |
| 7 | 109 |
| 8 | 269 |
| 9 | 421 |
| 10 | 509 |
| 11 | 521 |
| 12 | 709 |
| 13 | 929 |
| 14 | 941 |
| 15 | 1549 |
| 16 | 1861 |
| 17 | 2281 |
| 18 | 2521 |
| 19 | 2749 |
| 20 | 2801 |
| 21 | 2909 |
| 22 | 3121 |
| 23 | 3169 |
| 24 | 3469 |
| 25 | 5821 |
| 26 | 5881 |
| 27 | 7109 |
| 28 | 8069 |
| 29 | 8969 |
| 30 | 9041 |
| 31 | 9181 |
| 32 | 10061 |
| 33 | 10601 |
| 34 | 11549 |
| 35 | 15121 |
| 36 | 16061 |
| 37 | 16889 |
| 38 | 16981 |
| 39 | 21929 |
| 40 | 30089 |
| 41 | 30169 |
| 42 | 32561 |
| 43 | 41149 |