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 | 0 |
| 1 | 1 |
| 2 | 5792 |
| 3 | 920482 |
| 4 | 33554432 |
| 5 | 545915033 |
| 6 | 5332006004 |
| 7 | 36620603758 |
| 8 | 194368031998 |
| 9 | 847288609443 |
| 10 | 3162277660168 |
| 11 | 10408989356987 |
| 12 | 30886277963534 |
| 13 | 84002440529229 |
| 14 | 212129196024140 |
| 15 | 502505405881790 |
| 16 | 1125899906842624 |