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 | 252 |
| 2 | 616 |
| 3 | 5445 |
| 4 | 5775 |
| 5 | 8888 |
| 6 | 48884 |
| 7 | 268862 |
| 8 | 448844 |
| 9 | 526625 |
| 10 | 577775 |
| 11 | 1478741 |
| 12 | 2468642 |
| 13 | 3498943 |
| 14 | 5304035 |
| 15 | 13577531 |
| 16 | 17377371 |
| 17 | 22666622 |
| 18 | 29244292 |
| 19 | 33999933 |
| 20 | 124666421 |
| 21 | 151202151 |
| 22 | 1144664411 |
| 23 | 36466266463 |
| 24 | 334826628433 |
| 25 | 534874478435 |
| 26 | 592723327295 |
| 27 | 597593395795 |