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 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 55 |
| 4 | 1729 |
| 5 | 19251 |
| 6 | 1050841 |
| 7 | 16977129 |
| 8 | 1322929665 |
| 9 | 28017221059 |
| 10 | 2839212609001 |
| 11 | 74390784295653 |
| 12 | 9283240524317761 |
| 13 | 289865990675075725 |
| 14 | 42976734096778661817 |
| 15 | 1557837326400792009751 |
| 16 | 267561369300137776050177 |
| 17 | 11042876765198762014337235 |