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 | 9 |
| 3 | 13 |
| 4 | 40 |
| 5 | 48 |
| 6 | 93 |
| 7 | 105 |
| 8 | 168 |
| 9 | 184 |
| 10 | 265 |
| 11 | 285 |
| 12 | 384 |
| 13 | 408 |
| 14 | 525 |
| 15 | 553 |
| 16 | 688 |
| 17 | 720 |
| 18 | 873 |
| 19 | 909 |
| 20 | 1080 |
| 21 | 1120 |
| 22 | 1309 |
| 23 | 1353 |
| 24 | 1560 |
| 25 | 1608 |
| 26 | 1833 |
| 27 | 1885 |
| 28 | 2128 |
| 29 | 2184 |
| 30 | 2445 |
| 31 | 2505 |
| 32 | 2784 |
| 33 | 2848 |
| 34 | 3145 |
| 35 | 3213 |
| 36 | 3528 |
| 37 | 3600 |
| 38 | 3933 |
| 39 | 4009 |
| 40 | 4360 |
| 41 | 4440 |
| 42 | 4809 |
| 43 | 4893 |
| 44 | 5280 |
| 45 | 5368 |
| 46 | 5773 |
| 47 | 5865 |