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 | 12 |
| 2 | 184 |
| 3 | 2428 |
| 4 | 32676 |
| 5 | 443100 |
| 6 | 5967248 |
| 7 | 80018540 |
| 8 | 1071819720 |
| 9 | 14345548208 |
| 10 | 191832756088 |
| 11 | 2563434424352 |
| 12 | 34237692810948 |
| 13 | 457102551851688 |
| 14 | 6100655850072092 |
| 15 | 81398668652158260 |
| 16 | 1085815517813680904 |