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 | 4 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 12 |
| 7 | 16 |
| 8 | 20 |
| 9 | 26 |
| 10 | 34 |
| 11 | 43 |
| 12 | 55 |
| 13 | 71 |
| 14 | 88 |
| 15 | 112 |
| 16 | 144 |
| 17 | 178 |
| 18 | 227 |
| 19 | 291 |
| 20 | 358 |
| 21 | 455 |
| 22 | 583 |
| 23 | 717 |
| 24 | 912 |
| 25 | 1168 |
| 26 | 1436 |
| 27 | 1826 |
| 28 | 2338 |
| 29 | 2875 |
| 30 | 3655 |
| 31 | 4679 |
| 32 | 5752 |
| 33 | 7312 |
| 34 | 9360 |
| 35 | 11506 |
| 36 | 14627 |
| 37 | 18723 |
| 38 | 23014 |
| 39 | 29255 |
| 40 | 37447 |
| 41 | 46029 |
| 42 | 58512 |
| 43 | 74896 |
| 44 | 92060 |
| 45 | 117026 |
| 46 | 149794 |
| 47 | 184123 |
| 48 | 234055 |