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 | 23400 |
| 2 | 159688 |
| 3 | 1079680 |
| 4 | 7216512 |
| 5 | 47799488 |
| 6 | 319477960 |
| 7 | 2132283592 |
| 8 | 14219886016 |
| 9 | 94826520320 |
| 10 | 632600369216 |
| 11 | 4219646774184 |
| 12 | 28145459043464 |
| 13 | 187735748042496 |
| 14 | 1252250358585088 |
| 15 | 8352796888611456 |
| 16 | 55715038868965512 |
| 17 | 371632331032444552 |