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) |
|---|---|
| 0 | 27 |
| 1 | 1459 |
| 2 | 78813 |
| 3 | 4257361 |
| 4 | 229976307 |
| 5 | 12422977939 |
| 6 | 671070785013 |
| 7 | 36250245368641 |
| 8 | 1958184320691627 |
| 9 | 105778203562716499 |
| 10 | 5713981176707382573 |
| 11 | 308660761745761375441 |
| 12 | 16673395115447821656387 |
| 13 | 900671996995928130820339 |
| 14 | 48652961232895566885954693 |