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 | 105 |
| 1 | 3465 |
| 2 | 19305 |
| 3 | 62985 |
| 4 | 156009 |
| 5 | 326025 |
| 6 | 606825 |
| 7 | 1038345 |
| 8 | 1666665 |
| 9 | 2544009 |
| 10 | 3728745 |
| 11 | 5285385 |
| 12 | 7284585 |
| 13 | 9803145 |
| 14 | 12924009 |
| 15 | 16736265 |
| 16 | 21335145 |
| 17 | 26822025 |
| 18 | 33304425 |
| 19 | 40896009 |
| 20 | 49716585 |
| 21 | 59892105 |
| 22 | 71554665 |
| 23 | 84842505 |
| 24 | 99900009 |
| 25 | 116877705 |
| 26 | 135932265 |
| 27 | 157226505 |
| 28 | 180929385 |