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 | 8 |
| 2 | 64 |
| 3 | 400 |
| 4 | 2500 |
| 5 | 16100 |
| 6 | 103684 |
| 7 | 665252 |
| 8 | 4268356 |
| 9 | 27399292 |
| 10 | 175880644 |
| 11 | 1128941012 |
| 12 | 7246435876 |
| 13 | 46513697660 |
| 14 | 298563888100 |
| 15 | 1916431442740 |
| 16 | 12301251494596 |
| 17 | 78959676072668 |
| 18 | 506828955431044 |
| 19 | 3253250254953428 |
| 20 | 20882069005614436 |