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 | 26 |
| 2 | 676 |
| 3 | 4374 |
| 4 | 26685 |
| 5 | 158847 |
| 6 | 955073 |
| 7 | 5788524 |
| 8 | 34901455 |
| 9 | 210178620 |
| 10 | 1268454968 |
| 11 | 7652012583 |
| 12 | 46136741805 |
| 13 | 278268558895 |
| 14 | 1678429458230 |
| 15 | 10122469053445 |
| 16 | 61049336691480 |
| 17 | 368205520547934 |
| 18 | 2220708116004047 |
| 19 | 13393382573976615 |