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 | 3660 |
| 3 | 66306 |
| 4 | 666672 |
| 5 | 16666806 |
| 6 | 6066462656 |
| 7 | 66686606406 |
| 8 | 666692662656 |
| 9 | 20666666069660 |
| 10 | 666676608666642 |
| 11 | 10666051666666662 |
| 12 | 664566666660662640 |
| 13 | 666626669666607656 |
| 14 | 6666086666606866662 |
| 15 | 616766666966468666660 |
| 16 | 66636666164666636562656 |
| 17 | 1536666668666666766166056 |