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 | 168 |
| 2 | 11172 |
| 3 | 217854 |
| 4 | 228480 |
| 5 | 446880 |
| 6 | 220093440 |
| 7 | 5228496000 |
| 8 | 10805558400 |
| 9 | 14091504577920 |
| 10 | 583455456460800 |
| 11 | 2583890834482298880 |
| 12 | 5510058011880428160 |
| 13 | 224050000769667072000 |
| 14 | 1022756201136515973120 |
| 15 | 1314073124731389718080 |
| 16 | 2661277331943365990400 |