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 | 0 |
| 2 | 1 |
| 3 | 4023 |
| 4 | 8508432 |
| 5 | 7563157341 |
| 6 | 4570181600483 |
| 7 | 2216652346764139 |
| 8 | 920838234258938763 |
| 9 | 337705364634088701870 |
| 10 | 111234470124947445670723 |
| 11 | 33292082833271137874429904 |
| 12 | 9134277286426372658212062801 |
| 13 | 2313878094049377443785487701909 |
| 14 | 544429795228369873787874387224776 |