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 | 5 |
| 1 | 255 |
| 2 | 3145 |
| 3 | 16835 |
| 4 | 59085 |
| 5 | 161095 |
| 6 | 371345 |
| 7 | 759435 |
| 8 | 1419925 |
| 9 | 2476175 |
| 10 | 4084185 |
| 11 | 6436435 |
| 12 | 9765725 |
| 13 | 14349015 |
| 14 | 20511265 |
| 15 | 28629275 |
| 16 | 39135525 |
| 17 | 52522015 |
| 18 | 69344105 |
| 19 | 90224355 |
| 20 | 115856365 |
| 21 | 147008615 |
| 22 | 184528305 |
| 23 | 229345195 |
| 24 | 282475445 |
| 25 | 345025455 |
| 26 | 418195705 |
| 27 | 503284595 |
| 28 | 601692285 |