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 | 0 |
| 1 | 177147 |
| 2 | 362797056 |
| 3 | 31381059609 |
| 4 | 743008370688 |
| 5 | 8649755859375 |
| 6 | 64268410079232 |
| 7 | 350277500542221 |
| 8 | 1521681143169024 |
| 9 | 5559060566555523 |
| 10 | 17714700000000000 |
| 11 | 50542106513726817 |
| 12 | 131621703842267136 |
| 13 | 317475837322472439 |
| 14 | 717368321110468608 |