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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 298 |
| 4 | 25097 |
| 5 | 4383626 |
| 6 | 1394519922 |
| 7 | 738298190981 |
| 8 | 608765840524809 |
| 9 | 742996254490626106 |
| 10 | 1289282092211451157634 |
| 11 | 3078466688415490018129781 |
| 12 | 9844321075186192301310239858 |
| 13 | 41209705023068976933023104392293 |
| 14 | 221473347301087557264532943397984133 |