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 | 17 |
| 2 | 80 |
| 3 | 1214 |
| 4 | 15308 |
| 5 | 1948616 |
| 6 | 20726198 |
| 7 | 2195382770 |
| 8 | 22082967872 |
| 9 | 2165293113020 |
| 10 | 1990280943581606 |
| 11 | 19147875284802356 |
| 12 | 16660504517966902430 |
| 13 | 1495392851464002242522 |
| 14 | 14115049597965094337960 |
| 15 | 1249674274871002654525988 |
| 16 | 1027312020387041054530226318 |