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 | 280 |
| 3 | 2534 |
| 4 | 14201 |
| 5 | 270845 |
| 6 | 3624914 |
| 7 | 35049871 |
| 8 | 431068698 |
| 9 | 5534003000 |
| 10 | 63359116756 |
| 11 | 744028146659 |
| 12 | 9066464960896 |
| 13 | 107792105015031 |
| 14 | 1274517673890830 |
| 15 | 15252160661225132 |
| 16 | 182090112172787219 |
| 17 | 2165329133215506254 |