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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 12 |
| 8 | 18 |
| 9 | 28 |
| 10 | 36 |
| 11 | 84 |
| 12 | 108 |
| 13 | 290 |
| 14 | 307 |
| 15 | 324 |
| 16 | 341 |
| 17 | 580 |
| 18 | 597 |
| 19 | 614 |
| 20 | 1080 |
| 21 | 1614 |
| 22 | 1740 |
| 23 | 1842 |
| 24 | 2616 |
| 25 | 3378 |
| 26 | 3480 |
| 27 | 3720 |
| 28 | 4344 |
| 29 | 4824 |
| 30 | 4914 |
| 31 | 5220 |
| 32 | 5526 |
| 33 | 6408 |
| 34 | 9828 |
| 35 | 10134 |
| 36 | 10440 |
| 37 | 14472 |
| 38 | 17944 |
| 39 | 19336 |
| 40 | 24360 |
| 41 | 27624 |
| 42 | 29484 |
| 43 | 31320 |
| 44 | 33144 |
| 45 | 33960 |