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 | 68 |
| 3 | 712 |
| 4 | 9270 |
| 5 | 147174 |
| 6 | 2786270 |
| 7 | 61662544 |
| 8 | 1568627031 |
| 9 | 45226595865 |
| 10 | 1460494997316 |
| 11 | 52298603045920 |
| 12 | 2059014449303471 |
| 13 | 88476000281671109 |
| 14 | 4123177399591735062 |
| 15 | 207239886694280045429 |
| 16 | 11179817701706220363653 |