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 | 32 |
| 4 | 9770 |
| 5 | 205832 |
| 6 | 32463802 |
| 7 | 966656134 |
| 8 | 102283239429 |
| 9 | 3913787773536 |
| 10 | 328076475659033 |
| 11 | 14746957510647992 |
| 12 | 1076226888605605706 |
| 13 | 53540340738182687296 |
| 14 | 3593066312119675283778 |
| 15 | 190433654636776931262392 |
| 16 | 12142048779807437697982030 |
| 17 | 669350612142203868221516908 |