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) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 9 |
| 6 | 12 |
| 7 | 15 |
| 8 | 21 |
| 9 | 27 |
| 10 | 36 |
| 11 | 45 |
| 12 | 63 |
| 13 | 81 |
| 14 | 99 |
| 15 | 144 |
| 16 | 180 |
| 17 | 225 |
| 18 | 324 |
| 19 | 405 |
| 20 | 513 |
| 21 | 729 |
| 22 | 918 |
| 23 | 1161 |
| 24 | 1647 |
| 25 | 2079 |
| 26 | 2619 |
| 27 | 3726 |
| 28 | 4698 |
| 29 | 5913 |
| 30 | 8424 |
| 31 | 10611 |
| 32 | 13365 |
| 33 | 19035 |
| 34 | 23976 |
| 35 | 30213 |
| 36 | 43011 |
| 37 | 54189 |
| 38 | 68283 |
| 39 | 97200 |
| 40 | 122472 |
| 41 | 154305 |
| 42 | 219672 |
| 43 | 276777 |
| 44 | 348705 |
| 45 | 496449 |
| 46 | 625482 |