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 | 945 |
| 2 | 1575 |
| 3 | 2205 |
| 4 | 3465 |
| 5 | 4095 |
| 6 | 5355 |
| 7 | 5775 |
| 8 | 5985 |
| 9 | 6435 |
| 10 | 6825 |
| 11 | 7245 |
| 12 | 7425 |
| 13 | 8085 |
| 14 | 8415 |
| 15 | 8925 |
| 16 | 9135 |
| 17 | 9555 |
| 18 | 9765 |
| 19 | 11655 |
| 20 | 12705 |
| 21 | 12915 |
| 22 | 13545 |
| 23 | 14805 |
| 24 | 15015 |
| 25 | 16695 |
| 26 | 18585 |
| 27 | 19215 |
| 28 | 19635 |
| 29 | 21105 |
| 30 | 21945 |
| 31 | 22365 |
| 32 | 22995 |
| 33 | 23205 |
| 34 | 24885 |
| 35 | 25935 |
| 36 | 26145 |
| 37 | 26565 |
| 38 | 28035 |
| 39 | 28215 |