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 | 364 |
| 3 | 86800 |
| 4 | 90768 |
| 5 | 149856 |
| 6 | 632400 |
| 7 | 828816 |
| 8 | 46462800 |
| 9 | 61987600 |
| 10 | 148468320 |
| 11 | 153972000 |
| 12 | 185684160 |
| 13 | 187465824 |
| 14 | 189300384 |
| 15 | 191659104 |
| 16 | 193808160 |
| 17 | 196219296 |
| 18 | 202460352 |
| 19 | 204118464 |
| 20 | 215399520 |
| 21 | 220116960 |
| 22 | 221931360 |
| 23 | 222778080 |
| 24 | 223382880 |
| 25 | 228584160 |
| 26 | 338116680 |