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 | 4240 |
| 2 | 198352 |
| 3 | 5858896 |
| 4 | 212829840 |
| 5 | 7079094288 |
| 6 | 245133874960 |
| 7 | 8344809419152 |
| 8 | 286297979078416 |
| 9 | 9790004471087504 |
| 10 | 335277906309809680 |
| 11 | 11474887935176701072 |
| 12 | 392843564281607701264 |
| 13 | 13447355724118720653712 |