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 | 4095 |
| 3 | 6435 |
| 4 | 7425 |
| 5 | 8415 |
| 6 | 8925 |
| 7 | 9555 |
| 8 | 26145 |
| 9 | 28035 |
| 10 | 30555 |
| 11 | 31815 |
| 12 | 32445 |
| 13 | 43065 |
| 14 | 46035 |
| 15 | 78975 |
| 16 | 80535 |
| 17 | 81081 |
| 18 | 103455 |
| 19 | 129195 |
| 20 | 182655 |
| 21 | 191565 |
| 22 | 261261 |
| 23 | 279279 |
| 24 | 351351 |
| 25 | 354585 |
| 26 | 355725 |
| 27 | 371925 |
| 28 | 403095 |
| 29 | 411255 |
| 30 | 430815 |
| 31 | 437745 |
| 32 | 442365 |
| 33 | 458055 |