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 | 1 |
| 2 | 7 |
| 3 | 127 |
| 4 | 5167 |
| 5 | 365527 |
| 6 | 39435607 |
| 7 | 6006997207 |
| 8 | 1226103906007 |
| 9 | 322796982334807 |
| 10 | 106460296033918807 |
| 11 | 42980408446129381207 |
| 12 | 20846482682939051365207 |
| 13 | 11959807608801430284133207 |
| 14 | 8010447502346968140207973207 |
| 15 | 6193994326661240674349352805207 |
| 16 | 5476021766725276671842502543205207 |