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 | 1 |
| 2 | 24 |
| 3 | 369 |
| 4 | 481216 |
| 5 | 510152025 |
| 6 | 61218243036 |
| 7 | 7142128354249 |
| 8 | 816243240485664 |
| 9 | 91827364554637281 |
| 10 | 102030405060708090100 |
| 11 | 112233445566778899110121 |
| 12 | 1224364860728496108120132144 |
| 13 | 13263952657891104117130143156169 |
| 14 | 14284256708498112126140154168182196 |