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 | 5 |
| 2 | 11 |
| 3 | 13 |
| 4 | 7 |
| 5 | 29 |
| 6 | 59 |
| 7 | 61 |
| 8 | 31 |
| 9 | 659 |
| 10 | 1319 |
| 11 | 1321 |
| 12 | 661 |
| 13 | 809 |
| 14 | 1619 |
| 15 | 1621 |
| 16 | 811 |
| 17 | 2129 |
| 18 | 4259 |
| 19 | 4261 |
| 20 | 2131 |
| 21 | 2549 |
| 22 | 5099 |
| 23 | 5101 |
| 24 | 2551 |
| 25 | 3329 |
| 26 | 6659 |
| 27 | 6661 |
| 28 | 3331 |
| 29 | 3389 |
| 30 | 6779 |
| 31 | 6781 |
| 32 | 3391 |
| 33 | 5849 |
| 34 | 11699 |
| 35 | 11701 |
| 36 | 5851 |
| 37 | 6269 |
| 38 | 12539 |
| 39 | 12541 |
| 40 | 6271 |
| 41 | 10529 |
| 42 | 21059 |
| 43 | 21061 |
| 44 | 10531 |