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 | 6485886225 |
| 2 | 71344748475 |
| 3 | 110260065825 |
| 4 | 123231838275 |
| 5 | 125730522225 |
| 6 | 149175383175 |
| 7 | 162485579025 |
| 8 | 185601564225 |
| 9 | 188090700525 |
| 10 | 191620685025 |
| 11 | 195686793225 |
| 12 | 201062472975 |
| 13 | 239977790325 |
| 14 | 265921335225 |
| 15 | 278893107675 |
| 16 | 304836652575 |
| 17 | 343751969925 |
| 18 | 395639059725 |
| 19 | 434554377075 |