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 | 85 |
| 4 | 1465 |
| 5 | 32677 |
| 6 | 894103 |
| 7 | 28977817 |
| 8 | 1085272945 |
| 9 | 46112305897 |
| 10 | 2191384887175 |
| 11 | 115164935076445 |
| 12 | 6631403822046697 |
| 13 | 415179375712149517 |
| 14 | 28079663069162365207 |
| 15 | 2040146099677929685345 |
| 16 | 158473205735310372796897 |
| 17 | 13105410949812720002967889 |
| 18 | 1149574078597445578977405319 |