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 | 9 |
| 4 | 21 |
| 5 | 44 |
| 6 | 81 |
| 7 | 139 |
| 8 | 222 |
| 9 | 339 |
| 10 | 495 |
| 11 | 701 |
| 12 | 963 |
| 13 | 1294 |
| 14 | 1701 |
| 15 | 2199 |
| 16 | 2796 |
| 17 | 3509 |
| 18 | 4347 |
| 19 | 5329 |
| 20 | 6465 |
| 21 | 7776 |
| 22 | 9273 |
| 23 | 10979 |
| 24 | 12906 |
| 25 | 15079 |
| 26 | 17511 |
| 27 | 20229 |
| 28 | 23247 |
| 29 | 26594 |
| 30 | 30285 |
| 31 | 34351 |
| 32 | 38808 |
| 33 | 43689 |
| 34 | 49011 |
| 35 | 54809 |
| 36 | 61101 |
| 37 | 67924 |
| 38 | 75297 |
| 39 | 83259 |
| 40 | 91830 |
| 41 | 101051 |
| 42 | 110943 |
| 43 | 121549 |
| 44 | 132891 |