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 | 10660 |
| 2 | 410718 |
| 3 | 15857764 |
| 4 | 641508138 |
| 5 | 26192388204 |
| 6 | 1074828860950 |
| 7 | 44184817939580 |
| 8 | 1818009134485384 |
| 9 | 74830315374059594 |
| 10 | 3080655589305779558 |
| 11 | 126836534137760888551 |
| 12 | 5222341102062849278834 |
| 13 | 215027736716667134649183 |