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 | 3 |
| 2 | 7 |
| 3 | 71 |
| 4 | 103 |
| 5 | 173 |
| 6 | 211 |
| 7 | 271 |
| 8 | 293 |
| 9 | 1117 |
| 10 | 1451 |
| 11 | 1531 |
| 12 | 1753 |
| 13 | 1787 |
| 14 | 1801 |
| 15 | 2089 |
| 16 | 2239 |
| 17 | 2341 |
| 18 | 2371 |
| 19 | 2713 |
| 20 | 2999 |
| 21 | 3019 |
| 22 | 3779 |
| 23 | 3881 |
| 24 | 3917 |
| 25 | 4159 |
| 26 | 4447 |
| 27 | 4513 |
| 28 | 4591 |
| 29 | 4969 |
| 30 | 5107 |
| 31 | 5483 |
| 32 | 5573 |
| 33 | 5591 |
| 34 | 5701 |
| 35 | 5813 |
| 36 | 5867 |
| 37 | 6011 |
| 38 | 6271 |
| 39 | 6311 |
| 40 | 6361 |
| 41 | 6397 |
| 42 | 6427 |
| 43 | 7243 |
| 44 | 8467 |
| 45 | 8513 |
| 46 | 9157 |
| 47 | 9343 |
| 48 | 9433 |
| 49 | 9719 |
| 50 | 10103 |