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 | 19 |
| 4 | 23 |
| 5 | 29 |
| 6 | 41 |
| 7 | 43 |
| 8 | 83 |
| 9 | 89 |
| 10 | 127 |
| 11 | 163 |
| 12 | 181 |
| 13 | 227 |
| 14 | 281 |
| 15 | 641 |
| 16 | 643 |
| 17 | 827 |
| 18 | 881 |
| 19 | 1283 |
| 20 | 1289 |
| 21 | 1627 |
| 22 | 2243 |
| 23 | 2729 |
| 24 | 4243 |
| 25 | 4729 |
| 26 | 6427 |
| 27 | 6481 |
| 28 | 8243 |
| 29 | 10243 |
| 30 | 16561 |
| 31 | 16729 |
| 32 | 20483 |
| 33 | 26561 |
| 34 | 40961 |
| 35 | 42187 |
| 36 | 81929 |
| 37 | 86561 |
| 38 | 102481 |
| 39 | 163841 |
| 40 | 166561 |
| 41 | 219683 |
| 42 | 326561 |
| 43 | 327689 |
| 44 | 859049 |