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 | 6 |
| 2 | 78 |
| 3 | 666 |
| 4 | 7503 |
| 5 | 82621 |
| 6 | 828828 |
| 7 | 7552441 |
| 8 | 87311505 |
| 9 | 557362578 |
| 10 | 9901692450 |
| 11 | 88893307128 |
| 12 | 934624072410 |
| 13 | 9836548472766 |
| 14 | 99245275962778 |
| 15 | 994337011743076 |
| 16 | 5535761776004778 |
| 17 | 89253915287999385 |
| 18 | 865474782199906830 |
| 19 | 9888742361454004621 |