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) |
|---|---|
| 3 | 81 |
| 4 | 1105 |
| 5 | 205427 |
| 6 | 483031 |
| 7 | 9402323 |
| 8 | 6232341 |
| 9 | 79324200 |
| 10 | 768459127 |
| 11 | 2265692766 |
| 12 | 2413112833 |
| 13 | 6737406626 |
| 14 | 150437989675 |
| 15 | 45319359337 |
| 16 | 15140186701 |