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 | 3 |
| 3 | 13 |
| 4 | 34 |
| 5 | 68 |
| 6 | 117 |
| 7 | 187 |
| 8 | 282 |
| 9 | 406 |
| 10 | 559 |
| 11 | 743 |
| 12 | 966 |
| 13 | 1232 |
| 14 | 1545 |
| 15 | 1899 |
| 16 | 2304 |
| 17 | 2764 |
| 18 | 3285 |
| 19 | 3869 |
| 20 | 4512 |
| 21 | 5222 |
| 22 | 6005 |
| 23 | 6867 |
| 24 | 7812 |
| 25 | 8828 |
| 26 | 9931 |
| 27 | 11125 |
| 28 | 12412 |
| 29 | 13798 |
| 30 | 15271 |
| 31 | 16847 |
| 32 | 18532 |
| 33 | 20330 |
| 34 | 22239 |
| 35 | 24255 |
| 36 | 26394 |
| 37 | 28660 |
| 38 | 31055 |
| 39 | 33573 |
| 40 | 36222 |