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 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 12 |
| 6 | 21 |
| 7 | 24 |
| 8 | 27 |
| 9 | 30 |
| 10 | 45 |
| 11 | 66 |
| 12 | 69 |
| 13 | 84 |
| 14 | 105 |
| 15 | 156 |
| 16 | 192 |
| 17 | 195 |
| 18 | 222 |
| 19 | 273 |
| 20 | 366 |
| 21 | 504 |
| 22 | 528 |
| 23 | 531 |
| 24 | 558 |
| 25 | 717 |
| 26 | 912 |
| 27 | 1236 |
| 28 | 1536 |
| 29 | 1539 |
| 30 | 1572 |
| 31 | 1581 |
| 32 | 1797 |
| 33 | 2346 |
| 34 | 3060 |
| 35 | 4008 |
| 36 | 4464 |
| 37 | 4467 |
| 38 | 4500 |
| 39 | 4725 |
| 40 | 5940 |
| 41 | 7752 |
| 42 | 10128 |
| 43 | 12480 |
| 44 | 12483 |
| 45 | 12516 |
| 46 | 12522 |
| 47 | 12741 |
| 48 | 12825 |
| 49 | 13959 |