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 | 2 |
| 2 | 16 |
| 3 | 288 |
| 4 | 8192 |
| 5 | 320000 |
| 6 | 15925248 |
| 7 | 963780608 |
| 8 | 68719476736 |
| 9 | 5642219814912 |
| 10 | 524288000000000 |
| 11 | 54394721876836352 |
| 12 | 6232805962420322304 |
| 13 | 781754012972500385792 |
| 14 | 106530593546206374264832 |
| 15 | 15672832819200000000000000 |
| 16 | 2475880078570760549798248448 |