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 | 8 |
| 2 | 56 |
| 3 | 368 |
| 4 | 2336 |
| 5 | 14576 |
| 6 | 89928 |
| 7 | 550504 |
| 8 | 3349864 |
| 9 | 20290360 |
| 10 | 122445504 |
| 11 | 736685008 |
| 12 | 4421048016 |
| 13 | 26475370088 |
| 14 | 158257613848 |
| 15 | 944493430152 |
| 16 | 5628996811904 |