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 | 16 |
| 2 | 512 |
| 3 | 11980 |
| 4 | 286631 |
| 5 | 6947036 |
| 6 | 168799572 |
| 7 | 4104115772 |
| 8 | 99818649293 |
| 9 | 2427829113648 |
| 10 | 59052536397220 |
| 11 | 1436349489188322 |
| 12 | 34936780127006555 |
| 13 | 849778519255324644 |
| 14 | 20669440240076116148 |
| 15 | 502749555285048546206 |