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 | 3050208 |
| 2 | 27150208 |
| 3 | 712250208 |
| 4 | 4198150208 |
| 5 | 9887150208 |
| 6 | 29407950208 |
| 7 | 186613550208 |
| 8 | 254756450208 |
| 9 | 412941550208 |
| 10 | 496967350208 |
| 11 | 553174550208 |
| 12 | 1710112750208 |
| 13 | 8023681250208 |
| 14 | 9908919150208 |
| 15 | 20053008750208 |
| 16 | 20931113950208 |
| 17 | 22635692110208 |
| 18 | 24734957450208 |
| 19 | 39291663950208 |