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 | 5 |
| 3 | 64 |
| 4 | 691 |
| 5 | 7011 |
| 6 | 70030 |
| 7 | 699597 |
| 8 | 7005450 |
| 9 | 70048740 |
| 10 | 700321813 |
| 11 | 7003128054 |
| 12 | 70034216605 |
| 13 | 700350142296 |
| 14 | 7003426996800 |
| 15 | 70033987968599 |
| 16 | 700341098675985 |
| 17 | 7003416399263312 |