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 | 41680575 |
| 2 | 146109375 |
| 3 | 173996991 |
| 4 | 210075200 |
| 5 | 301241024 |
| 6 | 307619775 |
| 7 | 345691071 |
| 8 | 387121599 |
| 9 | 491184575 |
| 10 | 503761599 |
| 11 | 580150592 |
| 12 | 613216575 |
| 13 | 735890624 |
| 14 | 960710463 |
| 15 | 1079589951 |
| 16 | 1182852800 |
| 17 | 1187518400 |
| 18 | 1406368575 |
| 19 | 1413366975 |